12 January, 2010
Lecture 1: Metallic glasses: overview of mechanical properties
Lecture 2: Metallic glasses: shear banding and design for improved mechanical properties
Abstract
In considering mechanical properties, metallic glasses will be compared mainly with conventional crystalline metals, but also with other types of glass. Particular attention will be paid in lecture 1 to the elastic properties of metallic glasses: their origin, their implications for applications, and their correlations with other properties. At ambient temperature, metallic glasses show a distinctive, very sharp localization of flow into shear bands. The nature of this phenomenon will be considered in depth in lecture 2, which will lead on to considerations of how to improve the mechanical properties of metallic glasses. Work in this area hold the prospect of delivering materials with truly exceptional properties and combinations of properties.
References and suggested reading
- Intrinsic plasticity or brittleness of metallic glasses, JJ Lewandowski, WH Wang & AL Greer, Philos. Mag. Lett. 85 (2005) 77- 87.
- Temperature rise at shear bands in metallic glasses, JJ Lewandowski & AL Greer, Nature Mater. 5 (2006) 15 -18.
- Metallic glasses as structural materials, MF Ashby & AL Greer, Scr. Mater. 54 (2006) 321- 326.
- Plasticity induced by nanoparticle dispersions in bulk metallic glasses, K Hajlaoui, AR Yavari, A LeMoulec, WJ Botta, G Vaughan, J Das, AL Greer & Å. Kvick, J. Non-Cryst. Solids 353 (2007) 327 – 331.
- Bulk metallic glasses ― at the cutting edge of metals research, AL Greer & E Ma, MRS Bulletin 32 (2007) 611- 615. (and the other articles in this issue devoted to metallic glasses)
- Metallic glasses... on the threshold, AL Greer, Materials Today 12 (2009) 14-22.