Discovery of plate-shaped athermal ω phase forming pairs with α′ martensite in a Ti-5.26 wt.% Cr Alloy

Dong Qiu, Mingxing Zhang, Patrick Kelly, Tadashi Furuhara

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

Plate-shaped athermal ω phase (ωP) has been observed for the first time in an as-quenched Ti-5.26 wt.% Cr alloy, forming a plate pair with α′ martensite. The orientation relationship is determined as: [01̄1]β // [21̄1̄0]ωp // [0 0 0 1]α′, (2 2 2)β // (0 0 0 1)ωp 0.5 away from (112̄0)α′, with the habit plane (54̄4̄)β // (06̄61)ωp // (34̄10)α′. Such observations are explained well using the edge-to-edge matching model. The singular α′/ωP interface implies that α′ martensite is likely to act as a heterogeneous nucleation site for ωP.

Original languageEnglish
Pages (from-to)752-755
Number of pages4
JournalScripta Materialia
Volume69
Issue number10
DOIs
Publication statusPublished - 2013 Nov

Keywords

  • Crystallography
  • Edge-to-edge matching
  • Martensitic transformation
  • Titanium alloys
  • ω Phase

ASJC Scopus subject areas

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

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