Thermo-mechanical fatigue test of a wrought Co-based alloy as potential tooling material for die casting

Ning Tang, Yunping Li, Phacharaphon Tunthawiroon, Yuichiro Koizumi, Akihiko Chiba

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

Thermo-mechanical fatigue (TMF) test of a wrought Co-Cr-Mo alloy was investigated and Co-based alloy showed superior TMF properties than the control sample of a hot work tool steel. During TMF test, high oxidation resistance and increased hardness were observed in the Co-based alloy in contrast to the low oxidation resistance and decreased hardness in the tool steel. The γ-phase-to-ε-phase transformation of the Co-based alloy was considered as the main hardening factor during the TMF test.

Original languageEnglish
Pages (from-to)164-168
Number of pages5
JournalMaterials Science and Engineering A
Volume615
DOIs
Publication statusPublished - 2014 Oct 6

Keywords

  • Co-based alloy
  • EBSD
  • Hardness measurement
  • Oxidation
  • Phase transformation
  • Thermo-mechanical fatigue (TMF)

ASJC Scopus subject areas

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

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