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

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

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Original languageEnglish
Pages (from-to)235-240
Journal / PublicationJournal of Alloys and Compounds
Publication statusPublished - 25 Jul 2014


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. © 2014 Elsevier B.V. All rights reserved.

Research Area(s)

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