iranian material science and engineering

Full collection of ASTM Standard

2009-01-03T21:28:00.000-08:00

Atlas of Phase Diagram

2009-01-03T21:22:00.000-08:00

This software is about phase diagram that it provided by student of Ferdowsi university of Mashad.
I'm sure, it's useful for u because my friend in Ferdowsi university made it.

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souece:www.metsofts.com

Metal Forming Handbook

2009-01-03T21:19:00.001-08:00

Publisher: Springer

Number Of Pages: 568

Publication Date: 1998-07-31

ISBN-10 / ASIN: 3540611851

ISBN-13 / EAN: 9783540611851

Binding: HardcoverBook

Description:

The "Metal Forming Handbook" presents the fundamentals of metal forming processes and press design. As a textbook and reference work in one, it provides an in-depth study of the major metal forming technologies: sheet metal forming, cutting, hydroforming and solid forming.Written by qualified, practically-oriented experts for practical implementation, supplemented by sample calculations and illustrated throughout by clearly presented color figures and diagrams, this book provides fundamental information on the state-of-the-art in the field of metal forming technology.

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Welding metallurgy in Cambridge

2009-01-03T21:16:00.000-08:00

Microstructure of steel welds
Stress and microstructure of steel welds
Mechanical properties of steel welds
Reliability of calcuations: paper, slides
Towards Weld Property Prediction
Superduplex stainless steel welds
Molybdenum in steel welds
Modelling strong weld metal
Type IV cracking
Friction stir-welding
Friction stir-weld microstructure
Friction stir-welding, review
Spot-welding equipment
MIG welding equipment
Robotic welding equipment
Electron beam welding equipment
Laser welding equipment
Laser welded components
Keyhole TIG welding process
Narrow gap welding, laser cladding, hybrid plasma-laser technique.

Dove-tail joints in steel.

Laser cutting of stents.
5-axis pulsed YAG profiler aimed at surgical tools.
Hole drilling using laser.
Laser welding of jewellery.
Tool repair using laser welding
Laser spot and seam welding.
Laser welding of battery cases.
Laser welding of aluminium car.
Remote laser welding of automotive components.
Variety of laser welding applications at Porsche.
High-speed cutting
Brazing using a laser as the heat source.
M.Phil. in Materials Modelling
Joining of Commercial Aluminium Alloys (PDF)
Full list of movies showing welding
Book reviews
AWS meeting, 2007
Aachen Welding Meeting, 2007
Research Papers
"The Growth Rate of Allotriomorphic Ferrite in Low-Alloy Steel Weld Deposits"Proceedings of The Third Scandinavian Symposium on Materials Science,Oulu, Finland, 1983, pp. 73-78,Acta Universitatis Ouluensis, Oulu Univeristy, FinlandH.K.D.H. Bhadeshia, L.-E. Svensson and B. Gretoft
"The Influence of Alloying Elements on the Formation ofAllotriomorphic Ferrite in Low-Alloy Steel Weld Deposits"Journal of Materials Science Letters, Vol. 4, 1985, pp. 305-308H.K.D.H. Bhadeshia, L.-E. Svensson and B. Gretoft
"A Model for the Development of Microstructure in Low-Alloy Steel (Fe-Mn-Si-C) Weld Deposits"Acta Metallurgica, Vol. 33, 1985, pp. 1271-1283H.K.D.H. Bhadeshia, L.-E. Svensson and B. Gretoft
"Fe-Cr-C Hardfacing Alloys for High-Temperature Applications"Proceedings of the First International Conference on Surface Engineering, ed. I. A. Bucklow, TWI, Abington, Cambridge, U.K.L.-E. Svensson, B. Gretoft, B. Ulander and H. K. D. H. Bhadeshia
"Fe-Cr-C Hardfacing Alloys for High-Temperature Applications" Journal of Materials Science, Vol. 21, 1986, pp. 1015-1019L.-E. Svensson, B. Gretoft, B. Ulander and H.K.D.H. Bhadeshia
"Development of Microstructure in the Fusion Zone of Steel Weld Deposits"Acta Stereologica, Vol. 5, 1986, No. 1, pp. 365-371B. Gretoft, H.K.D.H. Bhadeshia and L.-E. Svensson
"The Austenite Grain Structure of Low-Alloy Steel Weld Deposits"Journal of Materials Science, Vol. 21, 1986, pp. 3947-3951H.K.D.H. Bhadeshia, L.-E. Svensson and B. Gretoft
"An Analysis of Cooling Curves from the Fusion Zone of Steel Weld Deposits"Scandanavian Journal of Metallurgy, Vol. 15, 1986, pp. 97-103L.-E. Svensson, B. Gretoft and H.K.D.H. Bhadeshia
"Computer-Aided Design of Electrodes for Manual Metal Arc Welding"Proceedings of an International Conference on Computer Technology in Welding, 1986,editor W. Lucas, published by The Welding Institute, Abington, U.K.L.-E. Svensson, B. Gretoft and H.K.D.H. Bhadeshia
"Thermodynamics of the Acicular Ferrite Transformation in Alloy-Steel Weld Deposits"Advances in Welding Technology and Science,ASM, Metals Park, Ohio, U. S. A., 1987, pp. 187-191.J.R. Yang and H.K.D.H. Bhadeshia
"The Mechanism of Acicular Ferrite Formation in Steel Weld Deposits"Advances in Welding Technology and Science,ASM, Metals Park, Ohio, U. S. A., 1987, pp. 209-213.M. Strangwood and H.K.D.H. Bhadeshia
"Prediction of Microstructure of the Fusion Zone of Multicomponent Steel Weld Deposits"Advances in Welding Technology and Science,ASM, Metals Park, Ohio, U. S. A., 1987, pp. 225-229.H.K.D.H. Bhadeshia, L.-E. Svensson and B. Gretoft
"The Microstructure of C-Mn Steel Welds" (in Swedish)Svetsen, Vol. 45, No. 2, 1986, pp. 10-16B. Gretoft, L.-E. Svensson and H.K.D.H. Bhadeshia
"Prediction of the Microstructure of Submerged-Arc Linepipe Welds"Proceedings of the Third International Conference on Weldingand Performance of Pipelines, 1986,published by the Welding Institute, Abington, U.K.H.K.D.H. Bhadeshia, L.-E. Svensson and B. Gretoft
"An Analysis of the Primary Microstructure of Cr and Mo Containing Low-Alloy Steel Welds"Proceedings of the 4th Scandanavian Symposium on Materials Science,Norwegian Institute of Technology, Norway.August 25-26, 1986, pp. 153-158H.K.D.H. Bhadeshia, L.-E. Svensson and B. Gretoft
"Theory for the formation of Allotriomorphic Ferrite in Steel Weld Deposits"Proceedings of an International Conference on Welding Metallurgyof Structural Steels, published by The Metallurgical Society of the AIME,Warrendale, Pennsylvania.Edited by J. Y. Koo, 1987, pp. 517-530.H.K.D.H. Bhadeshia, L.-E. Svensson and B. Gretoft
"Solute-Segregation, Oxygen Content and the Transformation-Start Temperatures of Steel Welds"Proceedings of an International Conference on Welding Metallurgyof Structural Steels, published by The Metallurgical Society of the AIME,Warrendale, Pennsylvania. Edited by J. Y. Koo, 1987, pp. 495-504.M. Strangwood and H.K.D.H. Bhadeshia
"Reaustenisation in Steel Weld Deposits" Proceedings of an International Conference on Welding Metallurgyof Structural Steels, published by The Metallurgical Society of the AIME,Warrendale, Pennsylvania.Edited by J. Y. Koo, 1987, pp. 549-563.J. R. Yang and H.K.D.H. Bhadeshia
"Stability, Wear Resistance and Microstructure of Fe-Cr-C and Fe-Cr-Si-C Hardfacing Alloys"Proceedings of Heat Treatment 1987,Institute of Metals, London, July 1988, pp. 39-43.S. Atamert and H.K.D.H. Bhadeshia
"The Non-Uniform Distribution of Inclusions in Low-AlloySteel Weld Deposits"Metallurgical Transactions, Vol. 19A, 1988, pp. 669-674.A. A. B. Sugden and H. K. D. H. Bhadeshia
"A Model for the Prediction of Strength in Steel Welds"Metallurgical Transactions A, Vol. 19A, 1988, pp. 1597-1602A. A. B. Sugden and H. K. D. H. Bhadeshia
"Nitrogen in Submerged-Arc Weld Deposits"Journal of Materials Science Letters, Vol. 7, 1988, pp. 610-612.H. K. D. H. Bhadeshia, L. -E. Svensson and B. Gretoft
"Computer-Aided Design of Electrodes for Arc Welding Processes: Part II"Proceedings of the Second International Conference on Computer Technology in Welding, The Welding Institute,Cambridge, 1988, paper 24. L. -E. Svensson, B. Gretoft, A. A. B. Sugden and H. K. D. H. Bhadeshia
"The Design of Submerged Arc Weld Deposits for High-Strength Steels"Proceedings of an International Conference on Improved Weldment Control using Computer Technology, Vienna, Austria, 4-5 July 1988. Published by Pergamon Press, Oxford, 1988, pp. 71-78. L. -E. Svensson and H. K. D. H. Bhadeshia
The Orientation Relationships Between Adjacent Plates ofAcicular Ferrite in Steel Weld Deposits"Materials Science and Technology, Vol. 5, 1989, pp. 93-97.J. R. Yang and H. K. D. H. Bhadeshia
"Comparison of the Microstructures and Wear Properties of Stellite Hardfacing Alloys Deposited by Arc Welding and Laser Cladding"Metallurgical Transactions A, Vol. 20A, 1989, pp. 1037-1054.S. Atamert and H. K. D. H. Bhadeshia
"The Microstructure of Submerged-Arc Weld Deposits forHigh-Strength Steels"Journal of Materials Science, Vol. 24, 1989, pp. 3180-3188.H. K. D. H. Bhadeshia and L.-E. Svensson
"Effect of Alloying Additions on the Microstructure and Properties of Vertical-Up Manual Metal Arc Welds - Part I: Method of theoretical assessment" Joining and Materials, Vol. 2, 1989, pp. 182R-187R.H. K. D. H. Bhadeshia and L.-E. Svensson
"Effect of Alloying Additions on the Microstructure and Properties of Vertical-Up Manual Metal Arc Welds - Part II: Results and Discussion Joining and Materials, Vol. 2, 1989, pp. 236R-238R H. K. D. H. Bhadeshia and L.-E. Svensson
"Lower Acicular Ferrite"Metallurgical Transactions A, Vol. 20A, 1989, pp. 1811-1818.A. A. B. Sugden and H. K. D. H. Bhadeshia
"The Estimation of Non-Uniform Elongation in Low-Alloy Steel Weld Deposits"Journal of Materials Science, Vol. 25, 1990, pp. 613-618.A. A. B. Sugden and H. K. D. H. Bhadeshia
"Nickel-Based Hardfacing Alloys for High Temperature Applications"Materials Science and Technology, Vol. 5, 1989, pp. 1220-1228.S. Atamert and H. K. D. H. Bhadeshia
"Reaustenitisation Experiments on Some High-Strength Steel Weld Deposits"Materials Science and Engineering, Vol. A118, 1989, pp. 155-170.J. R. Yang and H. K. D. H. Bhadeshia
"Microstructural Entropy and the Scatter in Toughness" Recent Trends in Welding Science and Technology (TWR'89),eds. S. A. David and J. M. Vitek, ASM International,Ohio, U. S. A., 1989, 745-748.A. A. B. Sugden and H. K. D. H. Bhadeshia
"Silicon Modification of Iron Base Hardfacing Alloys"Recent Trends in Welding Science and Technology (TWR'89),eds. S. A. David and J. M. Vitek, ASM International,Ohio, U. S. A., 1989, 273-278.S. Atamert and H. K. D. H. Bhadeshia
"Complete Reaustenitisation in Multirun Steel Weld Deposits"Recent Trends in Welding Science and Technology (TWR'89),eds. S. A. David and J. M. Vitek,ASM International, Ohio, U. S. A., 1989, 205-210.R. Reed and H. K. D. H. Bhadeshia
"The Dislocation Density of Acicular Ferrite in Steel Welds" American Welding Journal, Vol. 69, 1990, pp. 305s-307s.J. R. Yang and H. K. D. H. Bhadeshia
"The Transition from Bainite to Acicular Ferrite in ReheatedFe-Cr-C Weld Deposits"Materials Science and Technology, Vol. 6, 1990, pp. 1005-1020.S. S. Babu and H. K. D. H. Bhadeshia
"Microstructure and Stability of Fe-Cr-C Hardfacing Alloys"Materials Science and Engineering, Vol. A130, 1990, pp. 101-112.S. Atamert and H. K. D. H. Bhadeshia
"Control of Weld Metal Microstructure and Properties"The Metallurgy, Welding and Qualification of Microalloyed(HSLA) Steel Weldments, eds. J. T. Hickney, D. G. Howden and M. D. Randall,American Welding Society, November 1990, pp. 34-69a.H. K. D. H. Bhadeshia
"Models for Acicular Ferrite"International Trends in Welding Research, eds. S. A. David and J. M. Vitek,ASM International, Ohio, USA, 1992, pp. 213-222.H. K. D. H. Bhadeshia
"Microstructural Development in an HSLA80 Laser Beam Weldment"Proceedings of the Society of Photo-Optical Instrumentation Engineers,Vol. 2500, 1994, pp. 846-853.E. A. Metzbower, P. E. Denney, W. Pratt and H. K. D. H. Bhadeshia
"Computer Modelling of Low Alloy Steel Welds"Welding & Metal Fabrication, Vol. 64, 1995, 23-24.A. J. Summerfield, T. Cool, B. R. Keville and H. K. D. H. Bhadeshia
"The Impact Toughness of C-Mn Steel Arc-Welds -A Bayesian Neural Network Analysis" Materials Science and Technology, Vol. 11, 1995, 1046-1051.H. K. D. H. Bhadeshia, D. J. C. MacKay and L.-E. Svensson
"Modelling of Fundamental Phenomena in Welds"Modelling and Simulation in Materials Science and Engineering,Vol. 3, 1995, 265-288.T. Zacharia, J. M. Vitek, J. A. Goldak, T. A. Debroy,M. Rappaz and H. K. D. H. Bhadeshia
"Calculation of Microstructure and Properties of Steel Welds"Second Griffith Conference on Micromechanisms of Fracture and Their Structural Significance, Institute of Materials, 1995, pp. 15-24.H. K. D. H. Bhadeshia
"Modelling the Inclusion Nucleation Potency in Steel Welds"Modelling and Control of Joining Processes,ed. T. Zacharia,American Welding Society, Florida, U.S.A., 1993, pp. 195-202.J. M. Gregg and H. K. D. H. Bhadeshia
"Model for Boron Effects in Steel Welds"Modelling and Control of Joining Processes,ed. T. Zacharia,American Welding Society, Florida, U.S.A., 1993, pp. 153-160.H. K. D. H. Bhadeshia and L.-E. Svensson
"Calculation of the Volume Fraction of Phases from CCT Curves"Modelling and Control of Joining Processes, ed. T. Zacharia,American Welding Society, Florida, U.S.A., 1993, pp. 306-313.E. A. Metzbower and H. K. D. H. Bhadeshia
"Modelling of Precipitation Sequences at Dissimilar Steel Joints"Modelling and Control of Joining Processes, ed. T. Zacharia,American Welding Society, Florida, U.S.A., 1993, pp. 215-221.J. M. Race and H. K. D. H. Bhadeshia
"A Model for Multipass Steel Welds"Acta Metallurgica et Materialia, Vol. 42, 1994, 3663-3678.R. C. Reed and H. K. D. H. Bhadeshia
"Modelling of Brittle Zones in the HAZ of Steel Welds"Modelling and Control of Joining Processes, ed. T. Zacharia,American Welding Society, Florida, U.S.A., 1993, 186-193.S. Suzuki, G. Rees and H. K. D. H. Bhadeshia
"Microstructures in Hot Wire Laser Beam Welding of HY80 Steel"Materials Science and Technology, Vol. 10, 1994, 56-59.E. A. Metzbower, H. K. D. H. Bhadeshia and R. H. Phillips
"Thermodynamics of Acicular Ferrite Nucleation"Materials Science and Technology, Vol. 10, 1994, pp. 353-358.G. I. Rees and H. K. D. H. Bhadeshia
"Metastable Phase Solidification in Electron Beam Weldingof Dissimilar Stainless Steels"Materials Science and Engineering A, Vol. A178, 1994, pp. 189-194.S. Tsukamoto, H. Harada and H. K. D. H. Bhadeshia
"Carbon Redistribution at Dissimilar Steel Joints"International Trends in Welding Research, eds. S. A. David and J. M. Vitek,ASM International, Ohio, USA, 1992, pp. 315-320.J. Race and H. K. D. H. Bhadeshia
"Autogenous Electron Beam Welds across Dissimilar Stainless Steel:Solidification Sequences"International Trends in Welding Research,eds. S. A. David and J. M. Vitek,ASM International, Ohio, USA, 1992, pp. 181-186.S. Tsukamoto, H. K. D. H. Bhadeshia and H. Harada
"Simulation of Weld Metal Microstructure and Properties"Proceedings of CAMSE '92 (Computer Aided Innovation of New Materials),eds. M Doyama, J. Kihara, M. Tanaka and R. Yamamoto,Elsevier Science Publishers, B.V., 1993, 1729-1734.H. K. D. H. Bhadeshia
"Modelling of Steel Welds"Materials Science and Technology, Vol. 8, 1992, pp. 123-133.H. K. D. H. Bhadeshia
"Stress and the Acicular Ferrite Transformation"Materials Science and Engineering A, Vol. A156, 1992, 1-9.S. S. Babu and H. K. D. H. Bhadeshia
"Crystallographic Texture and the Austenite Grain Structureof Low-Alloy Steel Weld Deposits"Journal of Materials Science Letters, Vol. 10, 1991, 142-144.S. S. Babu, H. K. D. H. Bhadeshia and L.-E. Svensson
"Acicular Ferrite Transformation in Alloy-Steel Weld Metals"Journal of Materials Science, Vol. 26, 1991, 839-845.J. R. Yang and H. K. D. H. Bhadeshia
"Solidification Sequences in Stainless Steel Dissimilar Alloy Welds"Materials Science and Technology, Vol. 7, 1991, pp. 50-61.H. K. D. H. Bhadeshia, S. A. David and J. M. Vitek
"The Yield and Ultimate Tensile Strengths of Steel Welds"Materials Science and Engineering A, Vol. 223, 1997, pp. 186-200 T. Cool, H. K. D. H. Bhadeshia and D. J. C. MacKay
"Model for Solidification Cracking in Low-Alloy Steel Weld Metals "Science and Technology of Welding and Joining, Vol. 1, 1996, pp. 43-50.K. Ichikawa, H. K. D. H. Bhadeshia and D. J. C. MacKay
"Modelling of Allotriomorphic Ferrite in Steel Welds"Mathematical Modelling of Weld Phenomena-3,eds. H. Cerjak and H. K. D. H. Bhadeshia,Institute of Materials, 1997, 181-198.K. Ichikawa and H. K. D. H. Bhadeshia
"Computer Modelling of Low Alloy Steel Welds"Welding & Metal Fabrication, Vol. 64, 1995, 23-24.A. J. Summerfield, T. Cool, B. R. Keville and H. K. D. H. Bhadeshia
"Model for Solidification Cracking in Low-Alloy Steel Weld Metals"Science and Technology of Welding and Joining, Vol. 1, 1996, pp. 43-50.K. Ichikawa, H. K. D. H. Bhadeshia and D. J. C. MacKay
"Inoculation of Steel Welds with Non-Metallic Particles"Materials Science and Engineering A, Vol. 223, 1997, pp. 146-157.J. M. Gregg, H. K. D. H. Bhadeshia and L.-E. Svensson
"Scatter in High Strength Steel Weld properties due to Interpass Temperature "Trends in Welding Research, eds S. A. David, T. DebRoy, J. A. Johnson, H. B. Smartt and J. M. Vitek, ASM International, Ohio, 1999, pp. 870-875.M. Lord and H. K. D. H. Bhadeshia
"New Welding Alloys, Computational Methods" Svetsaren, Vol. 53, 1998, 22-25. L.-E. Svensson and H. K. D. H. Bhadeshia
"Modelling of Phase Transformations in Steel Welds" Proceedings of ECOMAP '98 (Environment Concious Innovative Materials Processing), Kyoto, Japan, published by the High Temperature Society of Japan, (1998) pp. 35-44. H. K. D. H. Bhadeshia
"Charpy Impact Transition Temperature for some Ferritic Steel Welds"Australasian Welding Journal, Vol. 45, 2000, pp. 33-37.S. H. Lalam, H. K. D. H. Bhadeshia and D. J. C. MacKay
"Modelling the Creep Rupture Strength of Ferritic Steel Welds"Science and Technology of Welding and Joining, Vol. 5, 2000, 81-90.D. Cole, C. Martin-Moran, A.G. Sheard, H. K. D. H. Bhadeshia and D. J. C. MacKay
"Estimation of the Mechanical Properties of Ferritic Steel Welds, Part I: Yield and Tensile Strength." Science and Technology of Welding and Joining, Vol.5, 2000, pp. 135-147. S. H. Lalam, H. K. D. H. Bhadeshia and D. J. C. MacKay
"Estimation of the Mechanical Properties of Ferritic Steel Welds, Part II: Elongation and Charpy Toughness." Science and Technology of Welding and Joining, Vol.5, 2000, pp. 149-160. S. H. Lalam, H. K. D. H. Bhadeshia and D. J. C. MacKay
"HAZ hardness in Laser Beam Welds"Proceedings of The Laser Insitute of America, Vol. 87, 2000, E138-E145.E. A. Metzbower, S. G. Lambrakos and H. K. D. H. Bhadeshia
"Bruscato Factor in Temper Embrittlement of Welds"Science and Technology of Welding and Joining, Vol. 5, 2000, pp. 338-340.S. H. Lalam, H. K. D. H. Bhadeshia and D. J. C. MacKay
"Estimation of Microstructure in Steel Welds" 7th International Aachen Welding Conference on High Productivity Joining Processes, editor U. Dilthey, published by Shaker Verlag, Aachen, Germany, 2001, pp. 817-830.H. K. D. H. Bhadeshia
"Analysis of Strength and Ductility of Welds in Shipbuilding Steels" Science and Technology of Welding and Joining, Vol. 6, 2001, 116-124.E. A. Metzbower, J. J. DeLoach, S. H. Lalam and H. K. D. H. Bhadeshia
"Analysis of the Toughness of Welds in Shipbuilding Steels" Science and Technology of Welding and Joining, Vol. 6, 2001, 368-374.E. A. Metzbower, J. J. DeLoach, S. H. Lalam and H. K. D. H. Bhadeshia
" Characteristics of High-Power Diode-Laser Welds for Industrial Assembly" Proceedings of the 20th ICALEO 2001, Florida, Vols. 92 and 93, 1321-1330.C.A. Walsh, H.K.D.H. Bhadeshia, A. Lau, B. Matthias, R. Oesterlein, and J. Drechsel
"Design of Creep-Resistant Steel Welds" Mathematical Modelling of Weld Phenomena - VPublished by the Institute of Materials, eds H. Cerjak and H. K. D. H. Bhadeshia, 2001, 431-448D. G. Cole and H. K. D. H. Bhadeshia
"Secondary effects in neural network analysis of the mechanical properties of welding alloys for HSLA shipbuilding steels" Mathematical Modelling of Weld Phenomena - VIPublished by the Institute of Materials, eds H. Cerjak and H. K. D. H. Bhadeshia, 2002, 231-242E. A. Metzbower, J. J. DeLoach, S. H. Lalam and H. K. D. H. Bhadeshia
"Strong and Tough Steel Welds" Mathematical Modelling of Weld Phenomena - VIPublished by the Institute of Materials, eds H. Cerjak and H. K. D. H. Bhadeshia, 2002, 205-230.M. Murugananth, H. K. D. H. Bhadeshia, E. Keehan, H. O. Andren and L. Karlsson
"Components of the Creep Strength of Steel Welds" Mathematical Modelling of Weld Phenomena - VIPublished by the Institute of Materials, eds H. Cerjak and H. K. D. H. Bhadeshia, 2002, 243-260M. Muruganath and H. K. D. H. Bhadeshia
"Prediction of Ferrite Number in Stainless Steels" Mathematical Modelling of Weld Phenomena - VIPublished by the Institute of Materials, eds H. Cerjak and H. K. D. H. Bhadeshia, 2002, 1079-1100M. Vasudevan, M. Muruganath and A. K. Bhaduri
"High Strength Steel Weld Metals: Developments with Ni and Mn" Today and Tomorrow in the Science and Technology of Welding and Joining,Proceedings of the 7th International Welding Symposium, Japan Welding Society, 20-22 November 2001, Kobe, Japan. Edited by T. Ohji, published by the Japan Welding Society, Tokyo, pp. 797-802. E. Keehan, L. Karlsson, M. Marimuthu, H.-O. Andren and H. K. D. H. Bhadeshia
" Microstructural change in high-temperature heat-affected zone of low-carbon weldable 13% Cr martensitic stainless steels"Stainless Steel World, October (2002) 16-23.D. Carrouge, P. Woollin and H. K. D. H. Bhadeshia
"Complex Weldment Properties: Trends in Predictive Power"Trends in Welding Research, eds S. A. David, J. Vitek, T. Debroy, J. Lippold and H. Smartt, ASM International, USA, 2002, 680--689. H. K. D. H. Bhadeshia
"Components of the creep strength of steel welds"Trends in Welding Research, eds S. A. David, J. Vitek, T. Debroy, J. Lippold and H. Smartt, ASM International, USA, 2002, 719-723. M. Murugananth and H. K. D. H. Bhadeshia
"Microstructure and Mechanical Effects of Ni and Mn on Strong-Steel Weld Metals"Trends in Welding Research, eds S. A. David, J. Vitek, T. Debroy, J. Lippold and H. Smartt, ASM International, USA, 2002, 719-723. E. Keehan, H. O. Andren, L. Karlsson, M. Murugananth and H. K. D. H. Bhadeshia
"Joining of Commercial Aluminium Alloys"Proceedings of an International Conference on Aluminium (INCAL '03), Aluminium Association of India, 2003, 777-783.H. K. D. H. Bhadeshia
"Silicon-Rich Bainitic Steel Welds"Proceedings of International Conference: Joining and Welding Solutions to Industrial Problems, JWRI, Osaka University, Japan, 2003, pp. 43-52.H. K. D. H. Bhadeshia, M. Lord and L.-E. Svensson
"Finite Element Simulation of Laser Spot Welding"Science and Technology of Welding and Joining, Vol. 8, 2003, 377-384.A. De, S. K. Maiti, C. A. Walsh and H. K. D. H. Bhadeshia
"Prediction of Cooling Rate and Microstructure in Laser Spot Welds"Science and Technology of Welding and Joining, Vol. 8, 2003, 391-399.A. De, C. A. Walsh, S. K. Maiti and H. K. D. H. Bhadeshia
"Reliability of Weld Microstructure and Property Calculations"Welding Journal, Vol. 83, 2004, 237s-243s.H. K. D. H. Bhadeshia
"Understanding Mechanical Properties of Novel High Strength Steel Weld Metals Through High-Resolution Microstructural Investigations"Trends in Welding Research, ASM International, eds S. A. David, T. DebRoy, J. C. Lippold, H. B. Smart and J. M. Vitek, 2005, pp. 969-974.E. Keehan, L. Karlsson, H. O. Andrén and H. K. D. H. Bhadeshia
"Influence of C, Mn and Ni on Strong Steel Weld Metals: Parts 1-3"Science and Technology of Welding and Joining, Vol. 11 (2006) 1-24.E. Keehan, L. Karlsson, H.-O. Andrén and H. K. D. H. Bhadeshia
"New Developments with C-Mn-Ni High-Strength Weld Metals, Part A - Microstructure"Welding Journal, Vol. 85 (2006) 200s-210s. E. Keehan, L. Karlsson, H.-O. Andrén and H. K. D. H. Bhadeshia
"Changes in Toughness at Low Oxygen Concentrations in Steel Weld Metals"Science and Technology of Welding and Joining, Vol. 11 (2006) 509-516. S. Terashima and H. K. D. H. Bhadeshia
"Size distribution of oxides and toughness of steel weld metals"Science and Technology of Welding and Joining, Vol. 11 (2006) 580-582. S. Terashima and H. K. D. H. Bhadeshia

Powder Metallurgy

2009-01-03T21:13:00.000-08:00

Introduction

powder metallurgy is the process of molding metal parts from metal powders to precise shapes through the application of high pressures .Compaction of the metal powders is followed by a high temperature sintering operation in an atmosphere –controlled furance in which the cold-welded-metal compact is bonded into a strong homogeneous structure .Physical properties of the sintered compact are similar to those of the parent metal. sintering is usually accomplished at about 80 percent of the melting point of the principal constituent to allow particle bonding and and recrystallization across the powders particle interface . Compacting of the powdered metals in the die is accomplished by simultaneously pressing on it with the upper and lower punches at pressures of about 30tons per square inch. Typical parts produced by P/M , the accepted acronym for powder metallurgy , include cutting tools, machine components, automotive parts, self-lubricating bearings , porous filters , magnetic materials , and composite metal-nonmetals .The P/M technique is also useful in forming of metals with low ductility and extremely high melting points such as tungsten , and some refractory metals.
The major applications of powder metallurgy today may be grouped into five areas:
Alloying of Essentially Non-alloyable metals.
Combining metals and Non-metallic materials .
Unitizing Metals with Melting Points too High for Casting .
Fabrication of Metals for Unique Structural Properties.
Vibration damping is another unusual and often desirable property peculiar to the P/M part.
Economical Production of Precision Parts.
Even with all of his important discoveries,the modern metallurgist cannot claim credit for the discovery of the powder metallurgy process metallic powders and solid from metallic powders have been made for many years . powder metallurgy was used in Europe at the end of the 18th century for working platinum into useful forms . platinum was infusible at that time .however it is known that the early incas in Ecuador manufactured shapes from platinum powders long before columbus made his famous voyage . At the present time , the powder metallurgy process is used for the manufacture of shapes of up to about 350 pounds in weight ,but some 1600 years ago , the famous iron pillar in Delhi,India weighting 6½ tons,was made from iron particles or sponge iron similar to an iron used in the modern process.
Wollaston , by 1829 ,had developed a technique that proved very successful in the manufacture of a malleable platinum from platinum powder that permitted forging of the resultant solid like any other metal.his published paer on the process is considered the first scientific work in powder metallurgy and laid the foundation for modern techniques .
The first modern application of the powder metallurgy process was the making of filaments for incandescent lamps.The first successful metal filament was made made from tantalum ,but with the discovery in 1909 by Coolidge that tungsten sintered from tungsten powder could be worked within a certain temperature range and then retain its ductility at room temperature ,tungsten became the most important filament material. Finely divided tungsten powder was compressed intosmall briquettes which were sintered below the melting point of tungsten . Those sintered briquettes were brittle at room temperature but could be worked at 4530-4890°F .subsequent hot working improved ductility until a stage was reached where the metal was ductile at room temperature and could be drawn into fine wire with tensile strengths approaching 600,000 psi.
powder metallurgy is a competitive process to die casting and injection molding of precision parts.when large quantities of high strength parts of iron ,steel ,or nickel are wanted , P/M offers an excellent solution for economical production of bushings , cams, gears, and other parts.A feature unique to P/M is the ability to produce self-lubricating bearings containing a network of small interconnected pores filled with lubricant .porous filters for diffusion , separation and regulation of flow may also be made by P/M.The melting points of the refractory metals such as tungsten , tantalum, and molybdenum are so high that it is difficult to melt and cast them , whereas with powder metal techniques, they are sintered below their melting points. powder metal compacting and sintered is the only feasible method of forming super hard tool materials such as cemented carbides and sintered oxide .Examples of metal-nonmetal combinations bearings made from iron and Teflon , and heat resistant metal-ceramics combinations such as Al2o3 and nickel . The metal-ceramic combination is frequently referred to as a cermet and finds applications in corrosion resistant chemical apparatus , pumps for severe service , and nuclear energy equipment.A number of metals which are not mutually soluble in either the liquid or solid states can be combined by powder metallurgy . This is particularly true for the electrical industry where motor brushes and contact points are made from powders of copper and graphite , and where contact parts are made from silver and nickel , or tungsten and copper .

crystallography

2009-01-03T21:02:00.000-08:00

A good site about crystallography and photo about crystallography and another

link

four book about crystallography

2009-01-03T20:54:00.000-08:00

Nanotubes and Nanocones
http://www.jcrystal.com/steffenweber/pb/swpb1.pdf
Fullerenes
http://www.jcrystal.com/steffenweber/pb/swpb2.pdf
Crystal Forms
http://www.jcrystal.com/steffenweber/pb/swpb3.pdf
Crystal Structures
http://www.jcrystal.com/steffenweber/pb/swpb5.pdf

source: http://www.mhmetall.persianblog.ir

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2008-12-31T00:17:00.000-08:00

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