Paper Title:

Effect of Strain-Rate on the Fracture Morphology of LY2 Aluminum Alloy by Laser Shock Processing

Periodical Key Engineering Materials (Volume 464)
Main Theme Functional Manufacturing Technologies and Ceeusro II
Edited by Long Chen, Yongkang Zhang, Aixing Feng, Zhenying Xu, Boquan Li and Han Shen
Pages 677-680
DOI 10.4028/www.scientific.net/KEM.464.677
Citation Jin Zhon Lu et al., 2011, Key Engineering Materials, 464, 677
Online since January, 2011
Authors Jin Zhon Lu, Kai Yu Luo, L. Zhang, J.W. Zhong, X.G. Cui, Yong Kang Zhang
Keywords Fracture Morphology, Laser Shock Processing (LSP), LY2 Aluminum Alloy, Strain-Rate
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Abstract

The strain-rate sensitivity of LY2 aluminum (Al) alloy subjected to laser shock processing (LSP) was investigated according to the fracture morphology at strain-rates ranging from 0.00001 s-1 to 0.1 s-1. The fracture morphology was observed by the scanning electron microscopy (SEM). Fracture morphology at different strain-rates suggested that LY2 Al alloy after LSP seemed to evolve towards a more ductile dimple fracture mode with increasing the strain-rates. The relations underlying the fracture morphology and strain-rate sensitivity were also addressed.