Dynamic mechanisms of strengthening and softening of coherent twin boundary via dislocation pile-up and cross-slip

Dynamic mechanisms of strengthening and softening of coherent twin boundary via dislocation pile-up and cross-slip

Although cross-slip strongly affects the deformation of polycrystalline materials, the phenomenon is rarely studied in twinned face centered cubic (FCC) metals. Here we performed in-situ TEM nanoindentation on a twinned nickel bi-crystal. Multiple pile-ups were generated, with the first dislocations...

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Bibliographic Details
Main Authors: Zhipeng Li, Jianfei Zhang, Yadi Zhai, Jiabao Zhang, Xiaodong Wang, Ze Zhang, Shengcheng Mao, Xiaodong Han
Format: Article
Language:English
Published: Taylor & Francis Group 2022-08-01
Series:Materials Research Letters
Subjects:
Coherent twin boundary
dislocation pinning
pile-up
cross-slip
in-situ TEM nanoindentation
Online Access:https://www.tandfonline.com/doi/10.1080/21663831.2022.2065892

Internet

https://www.tandfonline.com/doi/10.1080/21663831.2022.2065892

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