Effect of Twin-Induced Grain Boundary Engineering on Intergranular Corrosion in Austenitic Stainless Steel

Masayuki Shimada, Hiroyuki Kokawa, Zhan Jie Wang, Yutaka S. Sato

Research output: Contribution to conferencePaperpeer-review

Abstract

Weld decay in the heat affected zone of austenitic stainless steel weldment can not be prevented perfectly only by existing techniques. In order to improve the intergranular corrosion resistance, a type 304 austenitic stainless steel was strained, heat-treated and then sensitized, varying the parameters (strain, temperature, time, etc.). The thermomechanically treated specimen showed an excellent intergranular corrosion resistance compared with the initial base material. The results suggest that the thermomechanical treatment can introduce low energy segments in the grain boundary network by annealing twins and can arrest the percolation of intergranular corrosion from the surface.

Original languageEnglish
Pages93-98
Number of pages6
Publication statusPublished - 2002 Dec 1
EventTrends in Welding Research: Proceedings of the 6th International Conference - Phoenix, AZ, United States
Duration: 2002 Apr 152002 Apr 19

Other

OtherTrends in Welding Research: Proceedings of the 6th International Conference
CountryUnited States
CityPhoenix, AZ
Period02/4/1502/4/19

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanical Engineering

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