High-throughput screening of shape memory alloy thin-film spreads using nanoindentation

被引：20

作者：

Dwivedi, Arpit ^{[2
]}

Wyrobek, Thomas J. ^{[2
]}

Warren, Oden L. ^{[2
]}

Hattrick-Simpers, Jason ^{[1
]}

Famodu, Olubenga O. ^{[1
]}

Takeuchi, Ichiro ^{[1
]}

机构：

[1] Univ Maryland, Dept Mat Sci & Engn, College Pk, MD 20742 USA

[2] Hysitron Inc, Minneapolis, MN 55344 USA

来源：

JOURNAL OF APPLIED PHYSICS | 2008年 / 104卷 / 07期

关键词：

D O I：

10.1063/1.2982091

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have demonstrated the utility of nanoindentation as a rapid characterization tool for mapping shape memory alloy compositions in combinatorial thin-film libraries. Nanoindentation was performed on Ni-Mn-Al ternary composition spreads. The indentation hardness and the reduced elastic modulus were mapped across a large fraction of the ternary phase diagram. The large shape memory alloy composition region, located around the Heusler composition (Ni2MnAl), was found to display significant departure in these mechanical properties from the rest of the composition spread. In particular, the modulus and the hardness values are lower for the martensite region than those of the rest of the phase diagram. (c) 2008 American Institute of Physics.

引用

页数：5

共 25 条

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[2]

Ab initio calculations of structure and lattice dynamics in Ni-Mn-Al shape memory alloys -: art. no. 014111 [J].