Study on the Distribution of Residual Stresses for Nondestructive Marking by Laser Shock Wave

Abstract:

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The marking system by laser shock wave (LSW) based on liquid crystal mask, which differs entirely from marking by laser ablation (or laser thermal effect), was established. Two-dimension (2D) nondestructive markings based on liquid crystal mask were prepared by LSW, and the distribution of residual stresses in laser-shocked region was measured and analyzed. The results showed that tensile residual stresses of sample surface were converted into compressive residual stresses by LSW, which is a nondestructive marking for aviation key parts.

Info:

Periodical:

Key Engineering Materials (Volumes 426-427)

Edited by:

Dunwen Zuo, Hun Guo, Guoxing Tang, Weidong Jin, Chunjie Liu and Chun Su

Pages:

454-457

DOI:

10.4028/www.scientific.net/KEM.426-427.454

Citation:

J. Z. Lu et al., "Study on the Distribution of Residual Stresses for Nondestructive Marking by Laser Shock Wave", Key Engineering Materials, Vols. 426-427, pp. 454-457, 2010

Online since:

January 2010

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Price:

$35.00

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