Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5455771 | Materials Science and Engineering: A | 2017 | 5 Pages |
Abstract
Bulk metallic glass composites (BMGCs) reinforced with a B2-CuZr phase exhibit improved ductility. However, the relationship between the macroscopic plastic deformation of BMGCs and the microscopic strain evolution is still poorly understood. Here, we investigated the strain-field evolution of a Cu44.3Zr48Al4Nb3.7 (at%) BMGC by using an in-situ digital image correlation technique during tensile deformation. The strain-field evolution in the composite containing B2-CuZr particles was analysed and compared to that in a Cu47Zr48Al4Nb1 BMG. We found that a high degree of shear strain heterogeneity played a key role in the macroscale plastic deformation, which was attributed to the intrinsic structural heterogeneities. These findings have implications for the development of BMGCs with excellent tensile properties.
Keywords
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Physical Sciences and Engineering
Materials Science
Materials Science (General)
Authors
Zhiliang Ning, Weizhong Liang, Zhijie Kang, Haichao Sun, Jianfei Sun,