A corrosion resistant sintered stainless steel: Type 304L containing mo-rich phases

Haruka Saito, Izumi Muto, Yu Sugawara

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

Pure Mo and type 304L stainless steel powders were mixed to form type 304L with 2.5 mass% Mo and were subsequently sintered to fabricate a stainless steel containing Mo-rich phases. After sintering, heat treatments were performed at 1573K (5 h) and 1373K (0.5 h). It was confirmed that Mo- and Cr-enriched secondary phases were generated. Potentiodynamic polarization was conducted in 0.1M NaCl. The pitting potential of the stainless steel containing Mo-rich phases was higher than that of the commercial type 316L sheet (non-sintered steel). The results of this study clearly indicate that the existence of Mo-rich phases in sintered stainless steels improves their pitting corrosion resistance, making them highly suitable for use in chloride environments.

Original languageEnglish
Pages (from-to)2248-2251
Number of pages4
JournalMaterials Transactions
Volume61
Issue number11
DOIs
Publication statusPublished - 2020 Oct 2

Keywords

  • Molybdenum
  • Pitting corrosion
  • Stainless steel

ASJC Scopus subject areas

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

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