Energy absorption mechanism of open-cell Zr-based bulk metallic glass foam

SCRIPTA MATERIALIA

卷:66

Article

Wei, X.¹  Chen, J. H.¹  Dai, L. H.¹ 

[1] Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China

关键词: Bulk metallic glass;    Foams;    Energy absorption;    Shear bands;   

DOI  :  10.1016/j.scriptamat.2012.01.039

来源: Elsevier

【 摘 要 】

Open-cell Zr41.25Ti13.25Cu12.5Ni10Be22.5 bulk metallic glass foams were successfully fabricated by a low-pressure melt infiltration method using crude salts as a space-holder material. Detailed investigations were carried out on the energy absorption property and its underlying mechanism for the present foam. It is found that the foam exhibits high energy absorption capacity and absorbs energy efficiently. Further microscopic observations reveal that the bending of struts, formation and manipulation of multiple shear bands, and microcracking within the material contribute to this foam's energy absorption capability. (C) 2012 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

【 授权许可】

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