Effect of ion irradiation on mechanical behaviors of Ti40Zr25Be30Cr5 bulk metallic glass
Effect of ion irradiation on mechanical behaviors of Ti40Zr25Be30Cr5 bulk metallic glass
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DOI：
10.1590/s1516-14392012005000047
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发表时间：
2012-09
影响因子：
1.7
通讯作者：
Zheng Hu;Ziqiang Zhao;Yanping Hu;Jianshuo Xing;T. Lu;B. Wei
中科院分区：
文献类型：
--
作者：
Zheng Hu;Ziqiang Zhao;Yanping Hu;Jianshuo Xing;T. Lu;B. Wei
研究了能量为25 MeV的C4+和Cl 4+离子辐照对Ti 40 Zr 25 Be 30 Cr 5块体非晶合金硬度和剪切带特征的影响。深度传感纳米压痕和显微压痕被用来表征塑性变形过程中的多尺度硬度和剪切带图案。结果表明，Cl ~（4+）离子辐照导致试样表面明显软化，对塑性变形过程中的锯齿状流动特征有明显影响。相比之下，C4+离子对硬度和剪切带图案的影响很小。此外，还对离子辐照后材料力学性能和塑性变形行为的变化机理进行了探讨。
In this work, the effect of C4+ and Cl4+ ion irradiation with 25 MeV energy on the hardness and shear banding feature of Ti40Zr25Be30Cr5 bulk metallic glass was studied. Depth-sensing nanoindetation and microindentation were applied for characterizing the multiple-scaled hardness and shear band patterns during plastic deformation. It is shown that the Cl4+ ion irradiation leads to an obvious softening of the sample surface, and distinctly affects the serrated flow feature during plastic deformation. In contrast, C4+ ions have little effect on the hardness and shear band patterns. Besides, the mechanism for the change of the mechanical properties and plastic deformation behavior after ion irradiation was also discussed.