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Metals and Materials International

, Volume 23, Issue 6, pp 1139–1143 | Cite as

Sintering properties of Ti-6Al-4V-xMo powder prepared by addition of Mo to Ti-6Al-4V scraps and subsequent pulverization

  • Jung-Min Oh
  • Ki-Min Roh
  • Hanjung Kwon
  • Jae-Won LimEmail author
Research Paper

Abstract

In this study, the sintering properties of Ti-6Al-4V-xMo powder prepared by an addition of Mo to Ti-6Al-4V scraps and subsequent pulverization were investigated. As the content of Mo added to Ti-6Al-4V scraps as a β stabilizer increased, the weight ratio of the α and β stabilizers in the Ti-6Al-4V-xMo changed and the original weight ratio of 6:4 varied to 5.71:8.57 when 5 wt% xMo was added. In order to compare the difference in properties of Ti-6Al-4V-xMo ingots with sintered bodies of the Ti-6Al-4V-xMo powder, we prepared sintered bodies from Ti-6Al-4V-xMo powder with an O content of about 5000 ppm and 325 mesh size. As a result, it was found that the sintered bodies of Ti-6Al-4V-xMo powder showed different properties of density and micro hardness compared to the Ti-6Al-4V-xMo ingots. These differences can be explained by the larger specific surface area of the sintered bodies, which formed a porous oxide layer on the surface due to the increase of Mo in the β zone of the Ti-6Al-4V alloys.

Keywords

Ti-6Al-4V Mo recycling sintering powder processing 

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Copyright information

© The Korean Institute of Metals and Materials and Springer Science+Business Media B.V. 2017

Authors and Affiliations

  • Jung-Min Oh
    • 1
  • Ki-Min Roh
    • 2
  • Hanjung Kwon
    • 2
  • Jae-Won Lim
    • 1
    Email author
  1. 1.Division of Advanced Materials Engineering and Research Center for Advanced Materials Development, College of EngineeringChonbuk National UniversityJeonjuRepublic of Korea
  2. 2.Mineral Resources Research DivisionKorea Institute of Geoscience and Mineral ResourcesDaejeonRepublic of Korea

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