2018-Sustainable Industrial Processing Summit
SIPS2018 Volume 5. Zehetbauer Intl. Symp. / SISAM
| Editors: | F. Kongoli, S. Kobe, M. Calin, J.-M. Dubois, T. Turna |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2018 |
| Pages: | 154 pages |
| ISBN: | 978-1-987820-90-4 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
CD shopping page
Metallic Glasses: A Range of States Offering Exceptional Mechanical Properties
A. Lindsay Greer1;1UNIVERSITY OF CAMBRIDGE, Cambridge, United Kingdom;
Type of Paper: Keynote
Id Paper: 154
Topic: 42
Abstract:
Focusing on metallic systems, we consider developments in understanding and exploiting the glassy state that is formed when a liquid is cooled into a solid state without crystallizing, having in mind that: "The deepest and most interesting unsolved problem in solid state theory is probably the theory of the nature of glass and the glass transition" [1]. Metallic glasses are of particular interest for several reasons, not just for their excellent mechanical properties. They not only have a multitude of possible applications, but they also open up the possibility of using mechanical workings to change the structure and properties of glass [2], something hardly explored for conventional oxide glasses. While plastic deformation can be expected to create structural effects, it is more surprising that there can be significant effects even well within the (nominally) elastic regime [3,4]. In this talk, we explore the diversity that can be achieved in the metallic glassy state, from very high energy ("rejuvenated") to very low energy ("relaxed" and even "ultrastable") states [5]. We also explore the extent to which directionality (anisotropy) can be induced in metallic glasses [6]. In each case, we examine the potential applications of the properties (structural and functional) that can be induced.
Keywords:
Advanced materials;References:
[1] P.W. Anderson, Science 267, (1995) 1615.[2] Y.H. Sun, A. Concustell, A.L. Greer, Nature Rev. Mater. 1, (2016) 16039.
[3] S.V. Ketov, Y.H. Sun, S. Nachum, Z. Lu, A. Checchi, A.R. Beraldin, H.Y. Bai, W.H. Wang, D.V. Louzguine-Luzgin, M.A. Carpenter, A.L. Greer, Nature, 524, (2015) 200.
[4] A.L. Greer, Y.H. Sun, Philos. Mag. 96, (2016) 1643.
[5] A.L. Greer, Nature Mater. 14, (2015) 542.
[6] Y.H. Sun, A. Concustell, M.A. Carpenter, J.C. Qiao, A.W. Rayment, A.L. Greer, Acta Mater. 112, (2016) 132.