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

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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.

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Authors and Affiliations

  1. Division of Advanced Materials Engineering and Research Center for Advanced Materials Development, College of Engineering, Chonbuk National University, Jeonju, 54896, Republic of Korea

    Jung-Min Oh & Jae-Won Lim

  2. Mineral Resources Research Division, Korea Institute of Geoscience and Mineral Resources, Daejeon, 34132, Republic of Korea

    Ki-Min Roh & Hanjung Kwon

Authors
  1. Jung-Min Oh
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  2. Ki-Min Roh
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  3. Hanjung Kwon
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  4. Jae-Won Lim
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Correspondence to Jae-Won Lim.

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Oh, JM., Roh, KM., Kwon, H. et al. Sintering properties of Ti-6Al-4V-xMo powder prepared by addition of Mo to Ti-6Al-4V scraps and subsequent pulverization. Met. Mater. Int. 23, 1139–1143 (2017). https://doi.org/10.1007/s12540-017-7096-8

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  • DOI: https://doi.org/10.1007/s12540-017-7096-8

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