Tailoring residual stress to achieve large plasticity in Zr55Al10Ni5Cu30 bulk metallic glass
Tailoring residual stress to achieve large plasticity in Zr55Al10Ni5Cu30 bulk metallic glass
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调整残余应力以实现 Zr55Al10Ni5Cu30 大块金属玻璃的大塑性
DOI：
10.1016/j.jallcom.2016.08.075
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发表时间：
2017-01
影响因子：
6.2
通讯作者：
Tao Zhang
中科院分区：
文献类型：
--
作者：
Yangyang Cheng;Shujie Pang;Chen Chen;Tao Zhang
为了探讨残余应力状态对非晶合金力学性能的影响，采用激光表面熔化技术，通过改变激光扫描方向与轴向的加工角度，对Zr55Al10Ni5Cu30非晶合金的残余应力分布进行调节。结果表明，激光加工角度对试样的塑性有显著影响。60°和90°激光加工角处理的试样的塑性应变改善量几乎是0°和30°处理试样的两倍。通过有限元分析，表征了残余应力分布随加工角度的变化规律，探讨了残余应力状态与塑性的相关性。本研究可为表面处理改善非晶合金力学性能的广泛应用提供帮助。
In order to explore the effect of residual stress state on the mechanical properties of BMGs, we utilized the laser surface melting to tune the residual stress distribution via changing the processing angle between the laser scanning direction and the axial direction in the Zr55Al10Ni5Cu30BMG. It was found that the laser processing angle has a significant effect on the plasticity of the treated specimens. The improved plastic strains of the specimens treated by 60° and 90° laser processing angles are almost twice those of 0° and 30° treated specimens. Via finite element analysis, the variation of residual stress distribution with the processing angle was characterized, and the correlation between the residual stress state and the plasticity was discussed. This study could be expected to aid in the wide application of surface treatment for improving the mechanical properties of BMGs.
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具有梯度非晶结构的块状金属玻璃具有优异的拉伸延展性
影响因子：
4.6
作者：
Wang Q;Yang Y;Jiang H;Liu CT;Ruan HH;Lu J
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作者：
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通讯作者：
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影响因子：
41.2
作者：
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通讯作者：
Greer, A. L.