Suppression of hydrogen embrittlement by formation of a stable austenite layer in metastable austenitic stainless steel

Toshihiro Tsuchiyama, Koichi Tsuboi, Shuichi Iwanaga, Takuro Masumura, Arnaud Macadre, Nobuo Nakada, Setsuo Takaki

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

Solution nitriding was applied to a metastable austenitic stainless steel plate (Fe-18Cr-8Ni alloy) to stabilize the austenite near the plate surface. After cold rolling, the interior austenite almost entirely transformed to martensite, but the stabilized surface austenite remained unchanged. The interior deformation-induced martensite contributes to the material's high strength and the surface stable austenite-layer plays an important role in preventing hydrogen permeation. As a result, the resistance to hydrogen embrittlement was significantly improved for the cold-rolled specimen.

Original languageEnglish
Pages (from-to)14-16
Number of pages3
JournalScripta Materialia
Volume90
Issue number1
DOIs
Publication statusPublished - 2014

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys

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