In Situ Study of Defect Migration Kinetics and Self-Healing of Twin Boundaries in Heavy Ion Irradiated Nanotwinned Metals
In Situ Study of Defect Migration Kinetics and Self-Healing of Twin Boundaries in Heavy Ion Irradiated Nanotwinned Metals
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DOI：
10.1021/nl504677z
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发表时间：
2015-05-01
期刊：
影响因子：
10.8
通讯作者：
Zhang, X.
中科院分区：
文献类型：
--
作者：
Li, J.;Yu, K. Y.;Zhang, X.
高能粒子在金属材料（例如Ag）中引入严重的辐射损伤。在这里，我们报告的研究孪晶界（TB）的影响区，在辐照纳米孪晶银的时间累积缺陷密度和缺陷扩散率是显着不同的孪晶内部。原位研究还揭示了TB对辐射的惊人弹性和自我修复：这项研究为耐辐射孪晶金属材料的设计提供了进一步的支持。
High energy particles introduce severe radiation damage in metallic materials, such as Ag. Here we report On the study on twin boundary (TB) affected zone in irradiated nanotwinned Ag wherein time accumulative defect density and defect diffusivity are substantially different from those in twin interior. In situ studies also reveal surprising resilience and self healing of TBs in response to radiation: This study provides further support for the design of radiation-tolerant twinned metallic materials.