Formation of stress-induced nano defects in shear bands of metallic glasses

Xiaofeng Gu, Jun Wang, Weidong Qin, Hongchao Kou, Jinshan Li, Lian Zhou

科研成果: 期刊稿件文章同行评审

1 引用 (Scopus)

摘要

Transmission electron microscopy (TEM) specimens of Zr-based metallic glasses were prepared from amorphous ribbons. Shear bands produced by bending these specimens were located by TEM. High resolution transmission electron microscopy analysis indicates the existence of nanoscale void-like defects and high-density areas in shear bands. The formation of these defects is believed resulting from the evolution of stress-activated free volumes during the mechanical loading and the removal of external stress, which can be understood by comparing the stress-induced processes in shear bands in analogy with the thermal annealing effects on similar metallic glasses.

源语言英语
页(从-至)941-944
页数4
期刊Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
39
6
出版状态已出版 - 6月 2010

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