Paper Title:
Laser Peening without Coating to Mitigate Stress Corrosion Cracking and Fatigue Failure of Welded Components
  Abstract

The authors have applied laser peening without coating (LPwC) to metallic materials. Compressive residual stress nearly equal to the yield strength of the materials was imparted on the surface. Accelerating stress corrosion cracking (SCC) tests showed that LPwC had a significant effect to prevent the SCC initiation of sensitized materials of SUS304, Alloy 600 and the weld metal, Alloy 182. Push-pull type fatigue testing demonstrated that LPwC drastically enhanced the fatigue strength of fillet-welded rib-plates of SM490A.

  Info
Periodical
Materials Science Forum (Volumes 580-582)
Edited by
Changhee Lee, Jong-Bong Lee, Dong-Hwan Park and Suck-Joo Na
Pages
519-522
DOI
10.4028/www.scientific.net/MSF.580-582.519
Citation
Y. Sano, Y. Sakino, N. Mukai, M. Obata, I. Chida, T. Uehara, M. Yoda, Y. C. Kim, "Laser Peening without Coating to Mitigate Stress Corrosion Cracking and Fatigue Failure of Welded Components", Materials Science Forum, Vols. 580-582, pp. 519-522, 2008
Online since
June 2008
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Price
$32.00
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