Detecting Structural Features in Metallic Glass via Synchrotron Radiation Experiments Combined with Simulations

Metals

Gu-Qing Guo²  Shi-Yang Wu²  Sheng Luo²  Liang Yang¹ 

[1] College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;

关键词: metallic glasses;    extended X-ray absorption fine structure;    X-ray diffraction;    reverse Monte Carlo simulation;    microstructure;   

DOI  :  10.3390/met5042093

来源: mdpi

【 摘 要 】

Revealing the essential structural features of metallic glasses (MGs) will enhance the understanding of glass-forming mechanisms. In this work, a feasible scheme is provided where we performed the state-of-the-art synchrotron-radiation based experiments combined with simulations to investigate the microstructures of ZrCu amorphous compositions. It is revealed that in order to stabilize the amorphous state and optimize the topological and chemical distribution, besides the icosahedral or icosahedral-like clusters, other types of clusters also participate in the formation of the microstructure in MGs. This cluster-level co-existing feature may be popular in this class of glassy materials.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.