THE EFFECT OF LASER SHOCK PEENING ON THE LIFE AND FAILURE MODE OF A COLD PILGER DIE
Journal Article
·
· Journal of Materials Processing Technology, 204(1-3):486-491
The laser shock peening process was used to increase fatigue life of pilger dies made of A2 tool steel by imparting compressive residual stresses to fatigue prone areas of the dies. The result of X-Ray diffraction analysis indicated that deep, high- magnitude compressive residual stresses were generated by the laser shock peening process, and the peened dies exhibited a significant increase of in-service life. Fractography of the failed dies indicates that the fracture mechanism was altered by the peening process.
- Research Organization:
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC05-76RL01830
- OSTI ID:
- 940747
- Report Number(s):
- PNNL-SA-58328; JMPTEF; VT0504000; TRN: US200824%%226
- Journal Information:
- Journal of Materials Processing Technology, 204(1-3):486-491, Vol. 204, Issue 1-3; ISSN 0924-0136
- Country of Publication:
- United States
- Language:
- English
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