skip to primary navigationskip to content

Rolls-Royce UTC

Department of Materials Science and Metallurgy

Studying at Cambridge

 

Dr Amir Shirzadi

Biography:

Lecturer in Materials Engineering - The Open University

Visiting Scholar - Wuhan University of Science and Technology

Engineering Consultant - Diffusion Bonding

Fellow - Institute of Materials, Minerals and Mining (IoM3)

Chartered Engineer - Engineering Council-UK

Professional Member - The Welding Institute (TWI) 

Research Interests

  • Developing and modelling new methods of diffusion bonding / brazing processes.
  • Designing new weld alloys capable of reducing residual stresses.
  • Phase transformation in steels.
  • Solidification.

Key Publications

2014-15
  • Microstructure and interfacial reactions during vacuum brazing of stainless steel to titanium using Ag-28%Cu Alloy, Metallurgical and Materials Transactions A, Feb 2015, Vol. 46, No. 2, pp. 771-782.
  • Refinement of Retained Austenite in Super-bainitic Steel by a Deep Cryogenic Treatment, journal of Iron and Steel Institute of Japan (ISIJ International), Jan 2014, Vol. 54, No. 1, pp. 222-226.
  • In situ observation of bainite to austenite transformation of microalloyed high strength steel during simulated welding cycle, Science and Technology of Welding and Joining, 2014, Vol. 19, No. 5, pp. 402-407.
  • Effect of Tempering Temperature on the Microstructure and Hardness of a Super-bainitic Steel Containing Co and Al, Journal of Iron and Steel Institute of Japan (ISIJ International), 2014, Vol. 54, No. 4, pp. 926–931.
2009-13
  • Microstructure and interfacial reactions during active metal brazing of stainless steel to titanium, Metallurgical and Materials Transactions A, 2013, Vol. 44A, pp. 2212-225.
  • Tempering stability of retained austenite in nanostructured dual-phase steels, Materials Science and Technology, 2013, Vol. 29 No. 8 pp. 947-953.
  • Effect of SiC reinforcement particles on the grain density in a magnesium-based metal–matrix composite: Modelling and experiment, Acta Materialia, 2012, Vol. 60, No. 6–7, pp. 2950-2958.
  • Influence of Co and Al on pearlitic transformation in superbainitic steels, Ironmaking & Steelmaking, 2012, Vol. 39, No. 7, pp. 535-539.
  • Crystallisation model of magnesium primary phase in the AZ91/SiC composite,
     Composites Part B: Engineering, 2012, Vol. 43, No. 8, pp. 3306-3309.
  • Combined effect of stress and strain on crystallographic orientation of bainite, Ironmaking & Steelmaking, 2011, Vol. 38, No. 7, pp. 519-524.
  • Design of weld fillers for mitigation of residual stresses in ferritic and austenitic steel welds, Science and Technology of Welding and Joining, 2011, Vol. 16, No. 3, pp. 279-284.
  • Accumulation of stress in constrained assemblies: novel Satoh test configuration, Science and Technology of Welding and Joining, 2010, Vol. 15, No. 6, pp. 497-499.
  • Comparison of alloying concepts for Low Transformation Temperature (LTT) welding consumables, Advanced Welding Technologies, 2010, Biuletyn Instytutu Spawalnictwa, Poland Nr 5/2010, pp. 33-39.
  • Modeling the effect of SiC mass fraction on crystallization of magnesium metal matrix composite; AZ91/SiC,  Polish journal of Materials Engineering (Inzynieria Materialowa), 2010, No. 3, pp. 703-707.
  • Modeling the effect of SiC particle size on crystallization of magnesium metal matrix composite; AZ91/SiC, Polish journal of Materials Engineering (Inzynieria Materialowa), 2010, No. 3, pp. 699-702.
  • Stainless steel weld metal designed to mitigate residual stresses, Science and Technology of Welding and Joining, 2009, Vol. 14, No. 6, pp. 559-565.
  • Bainite orientation in plastically deformed austenite, International Journal of Materials Research, 2009, Vol.100, No. 1, pp. 40-45.

Granted Patents

USA Patent    6,669,534 B2

UK Patent      2380491

UK Patent      2386578

Eu Patents     1009579

USA Patent    6,257,481 B1

  

Other Publications

1997–2008
  • Shirzadi A.A.,  Zhu Y. and Bhadeshia H.K.D.H. (2008): Joining Ceramics to Metals using Metallic Foam. Materials Science and Engineering A, Vol. 496, Issues 1-2, 25 Nov. 2008, pp. 501-506.
  • Shirzadi A.A. and Wallach E.R. (2005): Novel method for diffusion bonding superalloys and aluminium alloys (Refereed), Materials Science Forum, Vol. 502, pp. 431-436.
  • Shirzadi A.A., Kocak M. and Wallach E.R. (2004): Joining stainless steel metal foams, Science and Technology of Welding and Joining, Vol. 9, No. 3, pp 277-279.
  • Shirzadi A.A. and Wallach E.R. (2004): A new method to diffusion bond superalloys, Science and Technology of Welding and Joining, Vol. 9, No. 1, pp 37-40.
  • Shirzadi A.A. and Saindrenan G. (2003): New method for flux-free diffusion brazing aluminium alloys using liquid gallium (UK Patent 2386578), Science and Technology of Welding and Joining, Vol. 8, No. 2. pp. 149-153.
  • Shirzadi A.A., Saindrenan G. and Wallach E.R. (2002): Flux-free diffusion brazing of aluminium -based materials using gallium (refereed), Materials Science Forum, Vols. 396-402, pp. 1579-1584.
  • Shirzadi A.A., Assadi H. and Wallach E.R. (2001): Interface evolution and bond strength when diffusion bonding materials with stable oxide films, Journal of Surface and Interface Analysis, Vol 31, No. 7, pp. 609-618.
  • Assadi H., Shirzadi A.A. and Wallach E.R.(2001): Modelling of the interface morphology when transient liquid phase diffusion bonding under a temperature gradient, Acta Materialia, Vol. 49, No. 1, pp. 31-39.
  • Shirzadi A.A. and Wallach E.R. (2000):  Analytical modelling of solidification during transient liquid phase (TLP) diffusion (refereed), Materials Science Forum, Vols. 329-330, pp. 351-360.
  • Shirzadi A.A. and Wallach E.R. (1999): Analytical modelling of transient liquid phase (TLP) diffusion bonding when a temperature gradient is imposed, Acta Materialia, Vol. 47, No. 13, pp. 3551-3560.
  • Shirzadi A.A. (1998): Development and modelling of temperature gradient TLP bonding: a new method for joining advanced materials, Welding in the World, Vol. 41, No. 5, pp. 435-442.
  • Winner of the 1998 International Henry Granjon Prize from the International Institute of Welding, IIW.  This paper was translated to French and published in Soudage et Techniques Connexes (1998), Vol. 52, No. 3/4, pp. 22-28.
  • Shirzadi A.A. and Wallach E.R. (1997): Temperature gradient transient liquid phase diffusion bonding: a new method for joining advanced materials, Science and Technology of Welding and Joining, Vol. 2, No. 3, pp. 89-94.
  • Winner of the 1999 Cook/Ablett Award from The Institute of Materials, UK.
  • This paper is translated to Chinese and published in Journal of Machinery & Materials (05/1999), No. 296, pp. 252-259, by B & I Publication Co. Ltd., Hong Kong.

    Shirzadi A.A. and Wallach E.R. (1997): New approaches for the TLP diffusion bonding of aluminium metal matrix composites, Materials Science and Technology, Vol. 13, No. 2, pp. 135-142.

    Janghorban K. and Shirzadi A.A. (1993): Reclamation of worn machinery parts by arc spraying, Iranian Journal of Science & Technology, Vol. 17, No. 1, pp. 69-80.

 

Conference Publications

  • Dai H., Mark A.F., Moat R., Shirzadi A.A., Bhadeshia H.K.D.H., Karlsson L. and Withers P.J. (2010):  Modelling of residual stress minimization through martensitic transformation in stainless steel welds, Mathematical Modelling of Weld Phenomena 9. Published by Technische Universitat GRAZ, Eds. H. Cerjak & N. Enzinger, 2010, pp. 239-252.
  • Peet M.J. &  Shirzadi A.A. (2013): Neural network modelling of hot deformation of austenite, 6th International Conference on Physical and Numerical Simulation of Materials Processing, 16-19 November 2010, Guilin, China
  • Shirzadi A.A. and Wallach E.R. (2006): Diffusion bonding superalloys using liquid gallium, “3rd International Symposium on Aerospace Materials and Manufacturing: Emerging Materials, Processes and Repair Techniques”, COM 2006, 1-4 October, Montreal, Canada, pp. 281-288.
  • Shirzadi A.A. and Wallach E.R. (2005): Solid-state diffusion bonding of alloys with stable surface oxides; aluminium, titanium and superalloys, invited keynote paper.  Published in Proceedings of “Inter-University Research Seminar (IURS) on Science and Technology of Welding and Joining Methods”, Beijing 15-16 August 2005, pp. 215-221.
  • Shirzadi A.A. and Wallach E.R. (2002): Practical aspects and modelling of a new method to produce non-planar bond interfaces when transient liquid phase (TLP) diffusion bonding advanced alloys, Proceedings of International Conference on Designing of Interfacial Structures in Advanced Materials and their Joints, Osaka, Japan, 25-28 November 2002, pp. 134-139.
  • Shirzadi A.A. and Wallach E.R. (2002): Surface oxide helps high precision bonding aluminium alloys in air using liquid gallium, Proceedings of International Conference on Designing of Interfacial Structures in Advanced Materials and their Joints, Osaka, Japan, 25-28 November 2002, pp. 655-658.
  • Shirzadi A.A., Saindrenan G. and Wallach E.R. (2002): New method for joining aluminium alloys using liquid gallium, Proceedings of Joining of Al and Mg, Sibenik, Croatia, September 2002, pp. 101-106.
  • Shirzadi A.A. and Wallach E.R. (1999): Novel methods for TLP diffusion bonding to produce high strength and reliable bonds in aluminium-based materials, Proceedings of The 5th International Conference on Trends in Welding Research, Pine Mountain, Georgia, USA, June 1998, pp. 677-681.
  • Shirzadi A.A. and Wallach E.R. (1997): A novel method for TLP diffusion bonding aluminium-based materials to produce reliable bonds with parent material strengths, Proceedings of The 8th International Conference on The Joining of Materials, JOM-8, Helsingør, Denmark, May 1997, pp. 279-288.
  • Shirzadi A.A. and Wallach E.R. (1996): The use of isostatic pressing to improve the strength of TLP diffusion bonds in aluminium-based composites, Proceedings of The 4th International Conference on Trends in Welding Research, Gatlinburg, Tennessee, USA, June 1995, pp. 797-802.
  • Shirzadi A.A. and Wallach E.R. (1995): Isostatic transient liquid phase diffusion bonding of aluminium-based metal matrix composite 8090/SiC, Proceedings of The 4th International Conference on Brazing, High Temperature Brazing and Diffusion Welding, LOT 95, Aachen, Germany, June 1995, pp. 90-93.
  • Shirzadi A.A. and Janghorban K. (1993): Improving the wear resistance of machinery parts by metal spraying, Proceedings of The International Seminar on Surface Metallurgy and Tribology, Esfahan, Iran, May 1993.
  • Shirzadi A.A. and Janghorban K. (1991): The use of metal spraying in reparation of worn industrial parts, Proceedings of The 1st International Symposium on Metallurgy, Ahvaz, Iran, April 1999. 

 

RSS Feed Latest news

New high temperature thermocouple

Nov 14, 2016

Dr. Michele Scervini has developed a new thermocouple for high-temperature applications

MS&T Literature Review Prize

Jun 15, 2016

Alison Wilson voted runner up in this year's competition