Shear delocalization and crack blunting of a metallic glass containing nanoparticles:: In situ deformation in TEM analysis

被引：109

作者：

Hajlaoui, K

Yavari, AR

Doisneau, B

LeMoulec, A

Botta, WJF

Vaughan, G

Greer, AL

Inoue, A

Zhang, W

Kvick, Å

机构：

[1] Inst Natl Polytech Grenoble, CNRS, LTPCM, Euronano, F-38031 Grenoble 1, France

[2] European Synchrotron Radiat Facil, F-38043 Grenoble, France

[3] Tohoku Univ, Inst Mat Res, Sendai, Miyagi 980, Japan

[4] Univ Cambridge, Dept Mat Sci & Met, Cambridge CB2 1TN, England

来源：

SCRIPTA MATERIALIA | 2006年 / 54卷 / 11期

关键词：

metallic glass; bulk amorphous materials; nanocomposites; plastic deformation; shear band;

D O I：

10.1016/j.scriptamat.2006.02.030

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

By carefully observing shear bands generated by tensile deformation in a transmission electron microscope, we report evidence of shear delocalization in a Cu-based glass containing nanoparticle dispersions. Nanocrystals grow in shear bands, delocalize the shear and deviate and blunt cracks. The results are consistent with matter in operating shear bands behaving like a semi-solid slurry. (c) 2006 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

收藏

页码：1829 / 1834

页数：6

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