Complexity of shear localization in a Zr-based bulk metallic glass

SCRIPTA MATERIALIA

卷:61

Article

Zhang, J.^1,2  Aimedieu, P.¹  Hild, F.¹  Roux, S.¹  Zhang, T.² 

[1] ENS Cachan CNRS UPMC PRES UniverSud Paris, LMT Cachan, F-94235 Cachan, France

[2] Beijing Univ Aeronaut & Astronaut, Dept Mat Sci & Engn, Beijing 100191, Peoples R China

关键词: Metallic glass;    Shear bands;    Compression test;    Digital image correlation;   

DOI  :  10.1016/j.scriptamat.2009.08.041

来源: Elsevier

【 摘 要 】

The compressive behaviour of a Zr-based metallic glass was studied in situ through optical and infrared imaging. Results show that localization bands are more complex than simple planes, and interactions between different slip systems are an essential ingredient to understanding slip arrest and hence the ultimate strain such materials sustain. Roughness, which is responsible for both the damage and arrest mechanisms, is argued to be another key feature that enhances the ultimate macroscopic shear strain. (C) 2009 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

【 授权许可】

Free