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Preparation of Ti-Mo-Si alloy powders from Ti alloy scraps

  • Ki Min Roh*
  • , Jung Min Oh
  • , Wonbaek Kim
  • , Chang Youl Suh
  • , Hanjung Kwon
  • *Corresponding author for this work
  • Korea Institute of Geoscience and Mineral Resources

Research output: Contribution to conferenceConference paperpeer-review

Abstract

Low-oxygen content Ti-Mo-Si powders were manufactured using two types of ternary Ti alloy ingots which were prepared by vacuum arc melting of Ti-Mo scrap with Si. The weight ratio of Ti-Mo scrap was Ti:Mo = 9:1 and Si contents in two alloy ingots were 1 and 2%. The alloy powders were prepared by the Hydrogenation-dehydrogenation and the subsequent solid-state deoxidation methods. The deoxidation process effectively reduced the initial oxygen content from 3, 350 ppm to 1, 700 ppm. In addition, the high-temperature oxidation resistance was enhanced by adding Si to Ti-Mo alloys. Thermal gravimetric analysis showed that the weight gain by oxidation was reduced from 8.85% for Ti-Mo to 7.5% for Ti-Mo-Si at 1, 500 °C.

Original languageEnglish
Title of host publicationEuro PM 2014 Congress and Exhibition, Proceedings
PublisherEuropean Powder Metallurgy Association (EPMA)
ISBN (Electronic)9781899072446
StatePublished - 2014
EventEuro PM 2014 International Conference and Exhibition - Salzburg, Austria
Duration: 2014.09.212014.09.24

Publication series

NameEuro PM 2014 Congress and Exhibition, Proceedings

Conference

ConferenceEuro PM 2014 International Conference and Exhibition
Country/TerritoryAustria
CitySalzburg
Period14.09.2114.09.24

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