Effect of temperature on the yield strength of a binary CuZr metallic glass: Stress-induced glass transition

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• 作者：L. Wang^a ; M.C. Liu^b ; J.C. Huang^b ; Y. Li^c ; W.H. Wang^d ; T.G. Nieh^a ; ^{tnieh@utk.edu}
• 关键词：B. Glasses ; metallic ; B. Mechanical properties at high temperatures ; B. Plastic deformation mechanisms ; B. Yield stress ; F. Mechanical testing
• 刊名：Intermetallics
• 出版年：2012
• 期刊代码：36_09669795
• 类别：ms
• 出版时间：July, 2012
• 卷：26
• 期：Complete
• 页码：162-165
• 文件大小：386 K

摘要

Compression tests were conducted on the binary Cub>50b>Zrb>50b> metallic glass in a temperature range below glass transition temperature where deformation mode was inhomogeneous. The yield strength of the glass was found to decrease monotonically with the increase of testing temperature in a non-linear fashion. The strength-temperature relation for the binary glass, as well as several other metallic glass systems, could be well correlated through the concept of stress-induced glass transition. The viscosity in the propagating shear band of the binary glass was also measured and found to be insensitive to the sample size and test temperature.