Academic Experience

1992.2-1992.9,  Research Fellow, Materials Science & Metallurgy, Cambridge University, UK
1992.10-1995.9, Title A Research Fellow, St John's College, Cambridge University, UK
1995.10-present,  Professor, Institute of Metal Research, CAS, China
1997.4-present, Head of Division of Titanium Alloys, Institute of Metal Research, CAS, China
2001.7-present, Deputy Director, Institute of Metal Research, CAS, China
2004.5-present, Head of Engineering Alloys Division, SYNL, China

Academic Activities

Associate Editor, Intermetallics (2000-2004)
Editor, Intermetallics (2005-2006)
Deputy Editor, Scripta Materialia (2004-2008)

Research Interest

My interest centres on developing high temparature, light-weight titanium materials, such as heat resistant solid solution alloys, intermetallics based on Ti3Al, Ti2AlNb and TiAl, as well as SiC fibre reinforced composites. My current emphasis in this respect features the development of thin sheet of gamma TiAl with preforms made of clean prealloyed powder, and the development of centrifugal casting technology of gamma TiAl, with a view to producing net-shape turbine blades for high efficiency aero engines.

In the past few years I have growing interest in the phase transformation from the hexagonal alpha phase in titanium alloys to the alpha double prime martensite, in alloys containing a sufficiently high fraction of transition metal elements. We have been studying the analogy of this transformation to its ordered equivalent, the transformation from the hexagonal Ti3Al to the orthorhombic Ti2AlNb, with the help of first principles computations. By taking advantage of the martensitic transormation, we were able to effectively refine the microstructure of alloys for fastener applications, allowing impact compression as high as 80% without cracking. On the other hand, by suppressing the martensitic transformation through ingenious alloying we obtained beta alloys with a range of competing, metastable phenomena. These alloys exhibit pronounced nonlinear elasticity, low bulk modulus (approaching the shear modulus) and Poisson's ratio, and Young's modulus approaching that of human bone. Biomedical implant and other niche applications of these alloys are currently being exploited.

Dr Rui Yang
Tel: 024 2389 3831
Fax: 024 2389 1320

• PhD, University of Cambridge, England (1992)
• MSc, Institute of Metal Research CAS, China (1987)
• BSc, Wuhan Institute of Hydraulic & Electric Engineering, China (1984)

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