The hot forging behaviour and its effects on the oxidation behaviour of W-Cr alloy

Yunping Li, Peng Li, Huakang Bian, Ning Tang, Yuichiro Koizumi, Akihiko Chiba

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

For the first time, hot compression of a sintered W-20Cr-20Mo-1.5Pd alloy was performed to improve oxidation resistance. Residual pores in as-sintered alloy were hypothesized to be eliminated through sliding of the viscous Pd-Cr-containing grain boundary during compression at 10-4s-1 and 1350°C, which increased the alloy's oxidation resistance. Because of sufficient Cr from the Pd-Cr phase near the grain boundary after hot compression, Cr could transfer more efficiently into the Cr-depleted zone, and therefore, the oxide film/matrix interface was much stronger and showed fewer interfacial cracks than the as-sintered alloy did.

Original languageEnglish
Pages (from-to)367-374
Number of pages8
JournalCorrosion Science
Volume83
DOIs
Publication statusPublished - 2014 Jan 1

Keywords

  • A. Alloy
  • C. Interfaces
  • C. Oxidation

ASJC Scopus subject areas

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

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