Effects of quenching rate on amorphous structures of Cu46Zr54 metallic glass |
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| Authors: | Jiangting Wang Peter Damian Hodgson Jingde Zhang Wenyi Yan Chunhui Yang |
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| Affiliation: | 1. Department of Mechanical Engineering and Materials Science, Yale University, New Haven, CT 06511, United States;2. Frontier Research Institute of Interdisciplinary Science (FRIS), Tohoku University, Sendai 980-8578, Japan;3. Department of Materials Science and Engineering, University of Tennessee, Knoxville, TN 37996, United States;4. Oak Ridge National Laboratory, Oak Ridge, TN 37831, United States;1. Department of Mechanical and Materials Engineering, Wright State University, Dayton, OH 45435, USA;2. National Research University Higher School of Economics, Moscow 101000, Russia;1. Institute of Applied Mechanics and Biomedical Engineering, Taiyuan University of Technology, Taiyuan 030024, China;2. Institute of Mechanics, Taiyuan University of Technology, Taiyuan 030024, China;3. Laboratory of Applied Physics and Mechanics of Advanced Materials, College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China;1. Laboratoire de Physique de la Matière Condensée, Faculté des Sciences Ben M''Sik, Hassan II University of Casablanca, B.P. 7955 Casablanca, Morocco;2. Laboratoire LS3M, Faculté Polydisciplinaire Khouribga, Univ Hassan 1er, 26000 Settat, Morocco;3. Laboratoire d''ingénierie, procédés, optimisation, systèmes informatiques, Ecole Nationale des Sciences Appliquées Khouribga, Univ Hassan 1er, 26000 Settat, Morocco |
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| Abstract: | Metallic glass shows some superior properties different from crystalline, but the nature of amorphous structure and structural change during glass transition have not been completely understood yet. Molecular dynamics simulation provides intuitive insight into the microstructure and properties at atomistic level. Before probing into the microstructures of metallic glass with molecular dynamics (MD) simulation, it is important to obtain amorphous state first. In the current work, we reproduce the process of manufacturing metallic glass in laboratory including the melting, equilibrating and quenching procedure with molecular dynamics simulations. The structure changing at melting point and glass transition temperature are investigated with the different cooling processing. The partial radial distribution function (PRDF) is applied as a criterion to judge the final amorphous state obtained considering the quenching at different cooling rates and the effects of cooling rate on the formation of amorphous structures are further discussed. |
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