Technion-MURPA Seminar, Tuesday 13 December 2011 from 7-8pm: Properties of ultrafine-grained and nanostructured materials produced by severe plastic deformation

Location: Seminar Room 135, Building 26, Monash Clayton

Presenter: Yuri Estrin, Centre for Advanced Hybrid Materials, Department of Materials Engineering, Monash University, Clayton, 3800 Victoria, Australia

Abstract

This talk presents a summary of work on ultrafine grained (UFG) materials produced by severe plastic deformation that has been conducted recently. Some new developments that promise potential applications in industry-scale processes will be highlighted. New techniques for grain refinement in near-surface areas of a work-piece will also be given. An emphasis will be on the remarkable properties of UFG materials, which go beyond their excellent mechanical performance. In particular, the talk will touch upon enhanced diffusion in several metals, accelerated kinetics of nitriding of steel, and enhanced hydrogenation of magnesium alloys. Some of this work was done jointly with the Technion researchers. The talk will also highlight the improved biocompatibility of titanium processed by severe plastic deformation, which is important for bioimplant applications. The focus of current research in this area is on enhancing the strength of commercial purity grades of Ti in order to avoid potential bio-toxicity of alloying elements. Recent results on enhanced attachment and growth of living cells to the surface of Ti will be discussed, including those of in vitro and in vivo studies of bone cell growth on UFG Ti implants. Further possible applications of UFG materials will be outlined.

Local Enquiries: Rob Gray, MessageLab, rob.gray@monash.edu