文献详情
Structural evolution in deformation-induced rejuvenation in metallic glasses: A cavity perspective
文献类型：期刊
通讯作者：Li, MZ (reprint author), Renmin Univ China, Dept Phys, Beijing Key Lab Optoelect Funct Mat & Micronano D, Beijing 100872, Peoples R China.
期刊名称：CHINESE PHYSICS B影响因子和分区
年：2019
卷：28
期：4
ISSN：1674-1056
关键词：metallic glasses; rejuvenation; cavity
所属部门：物理学系
摘要：Classical molecular dynamics simulations have been performed to investigate the structural evolution in deformation-induced rejuvenation in Cu80Zr20 metallic glass. Metallic glasses obtained by different cooling rates can be rejuvenated into the glassy state with almost the same potential energy by compressive deformation. The aging effect in different metallic glasses in cooling process can be completely erased by the deformation-induced rejuvenation. The evolution of cavities has been analyzed ...More
Classical molecular dynamics simulations have been performed to investigate the structural evolution in deformation-induced rejuvenation in Cu80Zr20 metallic glass. Metallic glasses obtained by different cooling rates can be rejuvenated into the glassy state with almost the same potential energy by compressive deformation. The aging effect in different metallic glasses in cooling process can be completely erased by the deformation-induced rejuvenation. The evolution of cavities has been analyzed to understand the structural evolution in rejuvenation. It is found that as metallic glasses are rejuvenated by mechanical deformation, a lot of cavities are created. The lower the potential energy is, the more the cavities are created. The cavities are mainly created in the regions without cavities or with small cavities populated, indicating that the irreversible rearrangements induced by deformation are accompanied by the creation of cavity. This finding elucidates the underlying structural basis for rejuvenation and aging in metallic glasses from the cavity perspective. ...Hide

DOI：10.1088/1674-1056/28/4/046103
百度学术：Structural evolution in deformation-induced rejuvenation in metallic glasses: A cavity perspective
语言：外文
人气指数：1
浏览次数：1
基金：National Natural Science Foundation of ChinaNational Natural Science Foundation of China [51631003, 51271197]; Ministry of Science and Technology (MOST) 973 Program, China [2015CB856800]; Fundamental Research Funds for the Central Universities, ChinaFundamental Research Funds for the Central Universities; Research Funds of Renmin University of China [16XNLQ01]
作者其他论文



Preparation of bulk metallic glasses by modifying local structure of icosahedral quasicrystals.Li, Zijing, Pan, Shaopeng, Zhang, Suhong, et al. .INTERMETALLICS. 2019, 109, 97-104.
Visualizing flow-unit-mediated deformation in a simple glass.Lu, Yunzhuo, Li, Maozhi, Huang, Yongjiang, et al. .SCRIPTA MATERIALIA. 2019, 165, 154-158.
Formation of complex wedding-cake morphologies during homoepitaxial film growth of Ag on Ag(111): atomistic, step-dynamics, and continuum modeling.Li, Maozhi;Han, Yong;Thiel, P. A.,等.JOURNAL OF PHYSICS-CONDENSED MATTER.2009,21(8).
Oxygen vacancy filament formation in TiO2: A kinetic Monte Carlo study.Li, Duo;Li, Maozhi;Zahid, Ferdows,等.JOURNAL OF APPLIED PHYSICS.2012,112(7).
Prediction of cooling rate dependent ordering in metallic glass transition using a two-state model.Hao, S. G.;Wang, C. Z.;Li, Maozhi,等.COMPUTATIONAL MATERIALS SCIENCE.2010,49(3),615-618.