Comparative study for microstructural characterisations and properties of Ti-Y powders produced by vacuum induction gas atomization cold crucible process
- Authors
- Kim, Dae-Kyeom; Kim, Young Il; Kim, Young Do; Lee, Dongju; Lee, Bin; Kim, Taek-Soo
- Issue Date
- Oct-2021
- Publisher
- TAYLOR & FRANCIS LTD
- Keywords
- VIGA; cold crucible; gas atomization; titanium; oxide dispersion strengthened alloys
- Citation
- POWDER METALLURGY, v.64, no.5, pp.396 - 403
- Indexed
- SCIE
SCOPUS
- Journal Title
- POWDER METALLURGY
- Volume
- 64
- Number
- 5
- Start Page
- 396
- End Page
- 403
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/140937
- DOI
- 10.1080/00325899.2021.1921962
- ISSN
- 0032-5899
- Abstract
- Ti-based alloy powder is an excellent candidate as an additive manufacturing material, owing to its high strength-to-weight ratio, corrosion resistance and biocompatibility. However, molten Ti is highly reactive with ceramic crucibles. Thus, only crucible-free techniques can be used, limiting the manufacturing. In this study, Ti-Y, CP-Titanium powder was manufactured using the vacuum induction gas atomization cold crucible (VIGA-CC) process, without using any master alloy; moreover, its properties were elucidated. Characterisations were performed to comparatively analyse the surface morphology, impurity content and mechanical properties of the synthesised powder. It was found that the powder had a uniform composition and was refined by the yttrium addition. The VIGA-CC process, by which alloy powders with various compositions can be prepared, is expected to expand the list of target alloys that can be used in additive manufacturing processes.
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