Paper Title:
Research on Stress Corrosion Behavior of AISI304 Stainless Steel Enhanced by Ultrasonic Peening Treatment
  Abstract

Surface-strengthening treatment was performed on the welded joints and base material specimens of AISI304 austenitic stainless steel using ultrasonic peening treatment. Stress-corrosion test in a 42% boiling magnesium chloride solution were conducted with treated and untreated specimens. Four-point loaded specimens were employed in the stress-corrosion test. Residual stress in the surface layer of the specimens was analyzed with an x-ray stress analyzer before the stress corrosion test. The microstructure of the specimens was observed by a scanning electron microscope after the stress corrosion test. The state of stress in the surface layer of the specimens affected by the ultrasonic peening treatment was analyzed. The stress corrosion cracking behavior was studied by observing the corrosion fractographs. The results showed that the stress corrosion resistance of the welded joint and base material specimens was remarkably improved because of the compressive residual stress employed by the ultrasonic peening treatment. Fracture modes were of the same kinds in the treated and untreated specimens.

  Info
Periodical
Materials Science Forum (Volumes 697-698)
Chapter
II. Material Forming Science and Technology
Edited by
Tian Huang, Dawei Zhang, Bin Lin, Anping Xu, Yanling Tian and Weiguo Gao
Pages
404-408
DOI
10.4028/www.scientific.net/MSF.697-698.404
Citation
D.Q. Yin, D. P. Wang, "Research on Stress Corrosion Behavior of AISI304 Stainless Steel Enhanced by Ultrasonic Peening Treatment", Materials Science Forum, Vols. 697-698, pp. 404-408, 2012
Online since
September 2011
Export
Price
$32.00
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