Hardening induced by dislocation core spreading at disordered interface in Cu/Nb multilayers
Hardening induced by dislocation core spreading at disordered interface in Cu/Nb multilayers
复制标题
Cu/Nb 多层无序界面处位错核扩展引起的硬化
DOI：
10.1016/j.scriptamat.2021.113917
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发表时间：
2021-04-16
影响因子：
6
通讯作者：
Ma, Xiuliang
中科院分区：
文献类型：
--
作者：
Yang, Wenfan;Gong, Mingyu;Ma, Xiuliang
Atomistic scale interface structures could tailor the dislocation behaviors at interface, as well as interface strengthening. In this work, we design a disordered interface by introducing an ultrathin amorphous layer in the Cu/Nb multilayers. Compared to the sharp interface, the disordered interface can smear the impinging dislocation with relaxing the in-plane and out-of-plane Burgers vectors, thus inducing a remarkable hardening in the Cu/Nb multilayers. The findings not only prove the hardening effect induced by dislocation interface smearing, but also shed light on developing advanced materials with ultrahigh hardness via disordered interface.(c) 2021 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
