Phase evolution in laser rapid forming of compositionally graded Ti-Ni alloys

X. Lin, Tai Man Yue, H. O. Yang, W. D. Huang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

10 Citations (Scopus)

Abstract

A graded binary titanium-nickel alloy with a compositional gradient, from elemental Ti to Ti-23.2 at. % Ni, has been successfully deposited using laser rapid forming. A metallurgical study of the phase evolution along the compositional gradient showed that a series of phase evolutions α→ α+β→ α+β+Ti2Ni→ β/B2 +Ti2Ni have occurred. Phase formation and microstructure evolution along the compositional gradient was analyzed by Scheil-Gulliver and eutectic growth models. In particular, the morphology of the β/B2 +Ti2Ni anomalous and coupled eutectic is discussed in detail.
Original languageEnglish
Pages (from-to)0410021-0410025
JournalJournal of Engineering Materials and Technology, Transactions of the ASME
Volume131
Issue number4
DOIs
Publication statusPublished - 1 Oct 2009

Keywords

  • Functionally graded materials
  • Laser rapid forming
  • Microstructure evolution
  • Nickel
  • Titanium

ASJC Scopus subject areas

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

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