First-principles analysis of the inhibitive effect of interstitial carbon on an active dissolution of martensitic steel

Mariko Kadowaki, Arkapol Saengdeejing, Izumi Muto, Ying Chen, Hiroyuki Masuda, Hideki Katayama, Takashi Doi, Kaori Kawano, Hideo Miura, Yu Sugawara, Nobuyoshi Hara

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

The effect of interstitial carbon on the anodic dissolution rate of AISI 1045 martensitic carbon steel was investigated. The active dissolution current of high carbon martensite was lower than that of low carbon martensite, indicating that active dissolution was suppressed by interstitial carbon. First-principles calculations were performed to investigate the electronic structure of martensite. The electronic density of states near and at the Fermi level of bct Fe (martensite) decreased with increasing interstitial carbon. The number of valence electrons on the iron atom in the Fe-C system was lower than that in the pure Fe system.

Original languageEnglish
Article number108251
JournalCorrosion Science
DOIs
Publication statusAccepted/In press - 2019

Keywords

  • Carbon steel
  • First-principles
  • Polarization

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Science(all)

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