Surface-layer microstructure control by high-frequency induction heating in metastable austenitic stainless steel

Toshihiro Tsuchiyma, Takanori Tsurumaru, Koichi Nakashima, Setsuo Takaki, Hirokazu Inaba, Yoshitaka Misaka

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

To suppress hydrogen permeation from environment into cold-worked high strength austenitic stainless steel, the surface heat treatment using high-frequency induction heating was applied to a cord-drawn metastable austenitic stainless steel (Fe-16Cr-10Ni alloy). By this heat treatment, the microstructure in the surface-layer (1mm depth) was controlled to austenite, while the inside of the material was strengthened by a large fraction of deformation-induced martensite. TDS analysis for the cathodically charged specimen revealed that hydrogen permeation was significantly retarded and no diffusible hydrogen existed. These results suggest that hydrogen embrittlement can be avoided by covering the material surface with austenite phase even in cold-worked high strength austenitic stainless steel.

Original languageEnglish
Title of host publication65th ABM International Congress, 18th IFHTSE Congress and 1st TMS/ABM International Materials Congress 2010
Pages4134-4143
Number of pages10
Volume5
Publication statusPublished - Dec 1 2010
Event65th ABM International Congress, 18th IFHTSE Congress and 1st TMS/ABM International Materials Congress 2010 - Rio de Janeiro, Brazil
Duration: Jul 26 2010Jul 30 2010

Other

Other65th ABM International Congress, 18th IFHTSE Congress and 1st TMS/ABM International Materials Congress 2010
CountryBrazil
CityRio de Janeiro
Period7/26/107/30/10

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials

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