Nano Archive

Effect of shot peening on the fatigue life of a Zr-based bulk metallic glass

Raghavan, R. and Ayer, R. and Jin, H. W. and Marzinsky, C. N. and Ramamurty, U. (2008) Effect of shot peening on the fatigue life of a Zr-based bulk metallic glass. SCRIPTA MATERIALIA, 59 (2). pp. 167-170.

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Abstract

The fatigue lives of a Zr-based bulk metallic glass (BMG) in the as-cast and shot-peened conditions were evaluated. Results suggest that shot peening does not cause significant enhancement of the fatigue performance of the BMG. Cracks were observed to nucleate in subsurface regions. This was attributed to the domination of the compressive residual stress field on the surface over deformation-induced plastic flow softening that otherwise leads to easy nucleation of shear bands which act like microcracks. (C) 2008 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

Item Type:Article
Uncontrolled Keywords:metallic glasses; nanoindentation; fatigue; shear bands; residual stresses
Subjects:Material Science > Nanofabrication processes and tools
Material Science > Nanostructured materials
ID Code:6044
Deposited By:IoN
Deposited On:13 Apr 2010 09:36
Last Modified:13 Apr 2010 09:36

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