Cerium addition to CaS inclusions in stainless steel: Insolubilizing water-soluble inclusions and improving pitting corrosion resistance

研究成果: Article査読

1 被引用数 (Scopus)

抄録

Pit initiation behavior at Ce-added and Ce-free CaS inclusions in Type 304 L stainless steel was investigated by microelectrochemical measurements. Stainless steel specimens containing artificial Ce-added and Ce-free CaS inclusions were fabricated by spark plasma sintering. The pit initiation resistance at the Ce-added CaS inclusions was higher than that at the Ce-free CaS inclusions. The surface of the Ce-free CaS inclusions largely dissolved during immersion in 0.1 M NaCl, while a large part of the Ce-added CaS inclusions remained undissolved. Thermodynamic calculation showed that CeS is less soluble than CaS.

本文言語English
論文番号109222
ジャーナルCorrosion Science
180
DOI
出版ステータスPublished - 2021 3

ASJC Scopus subject areas

  • 化学 (全般)
  • 化学工学(全般)
  • 材料科学(全般)

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