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Inhomogeneous creep deformation in metallic glasses
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Inhomogeneous creep deformation in metallic glasses
a State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China
b Faculty of Materials and Energy, Southwest University, Chongqing 400715, China
c School of Aerospace, Mechanical and Mechatronic Engineering, The University of Sydney, Sydney, NSW 2006, Australia
Homogeneous creep is a commonly observed phenomenon in bulk metallic glasses. Here we reported inhomogeneous creep behavior that occurs under nanoindentation when the applied stress exceeds the yield stress. Extensive investigation showed that inhomogeneous creep is associated with the local microstructure and the operation of shear bands before creep. The mechanism responsible for inhomogeneous creep is discussed.
Keywords
Bulk metallic glasses; Inhomogeneous creep; Serrated flows
http://www.sciencedirect.com/science/article/pii/S0921509315303877
https://wap.sciencenet.cn/blog-4773-922438.html
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