Influence of the shot-peening intensity on the structure and near-surface mechanical properties of Ti40Zr10Cu38Pd12 bulk metallic glass
Influence of the shot-peening intensity on the structure and near-surface mechanical properties of Ti40Zr10Cu38Pd12 bulk metallic glass
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DOI：
10.1063/1.4833017
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发表时间：
2013-11
影响因子：
4
通讯作者：
S. González;J. Fornell;E. Pellicer;S. Suriñach;M. D. Baró;A. L. Greer;F. Belzunce;J. Sort
中科院分区：
文献类型：
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作者：
S. González;J. Fornell;E. Pellicer;S. Suriñach;M. D. Baró;A. L. Greer;F. Belzunce;J. Sort
喷丸处理改变了Ti 40 Zr 10 Cu 38 Pd 12大块非晶合金的近表面结构和力学性能。在表面附近，硬度、杨氏模量和弹性应变极限都降低。松弛热的测量结果表明，一个异常高的冷作储能可以诱导，这意味着自由体积的大幅增加。在最高SP强度下，存在通过增加的自由体积而不是通过温度的增加而实现的部分纳米晶化。
Shot-peening (SP) changes the near-surface structure and mechanical properties of a Ti40Zr10 Cu 38Pd12 bulk metallic glass. Near the surface, the hardness, Young's modulus, and elastic strain limit are all reduced. Measurements of the heat of relaxation show that an exceptionally high stored energy of cold work can be induced, implying a large increase in free volume. At the highest SP intensity there is partial nanocrystallization enabled by the increased free volume and not by the increase in temperature.