Beneficial role of retained austenite in pitting corrosion resistance of Fe-C-Si-Mn steel in chloride environments

Mariko Kadowaki, Izumi Muto, Yu Sugawara, Nobuyoshi Hara

研究成果: Article査読

6 被引用数 (Scopus)

抄録

The pitting corrosion behavior of Fe-0.39C-1.51Si-2.01Mn steel was investigated in NaCl-containing boric-borate buffers at pH 7.0. The microstructure of the steel was confirmed to consist of retained austenite and bainite matrix, and the interstitial C concentration in the retained austenite was estimated to be higher than that in the matrix. The results of immersion tests clarified that the retained austenite hardly dissolved in the early stage of pitting, and acted as a barrier against pit propagation. The dissolution resistance of the retained austenite appeared to originate from the high amount of interstitial C.

本文言語English
論文番号110251
ジャーナルCorrosion Science
200
DOI
出版ステータスPublished - 2022 5月 15

ASJC Scopus subject areas

  • 化学 (全般)
  • 化学工学(全般)
  • 材料科学(全般)

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