Improved ductility and oxidation resistance of cast Ti-6Al-4V alloys by microalloying

J. H. Luan, Zengbao Jiao, G. Chen, C. T. Liu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

47 Citations (Scopus)

Abstract

The effects of B and Y on the mechanical properties and oxidation behavior of cast Ti-6Al-4V alloys were systematically investigated, and the new alloys with improved ductility and oxidation resistance are developed by the microalloying approach. The results indicate that boron is beneficial for improving the ductility by not only grain-size refinement but also grain-boundary enhancement, while yttrium is effective in increasing the oxidation resistance through possibly slowing down the oxidation kinetics. The improved properties, together with their high strength, make the microalloyed cast Ti-6Al-4V alloys competitive for practical engineering applications.
Original languageEnglish
Pages (from-to)235-240
Number of pages6
JournalJournal of Alloys and Compounds
Volume602
DOIs
Publication statusPublished - 25 Jul 2014
Externally publishedYes

Keywords

  • Cast Ti-6Al-4V alloy
  • Ductility improvement
  • Microalloying
  • Oxidation

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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