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Inhomogeneous creep deformation in metallic glasses

已有 2535 次阅读 2015-9-21 20:26 |个人分类:非晶前沿|系统分类:论文交流

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

Abstract

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

 



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