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.
Acknowledgements
This work was supported by the Industrial Strategic Technology Development Program-Development of Material Component Technology (20001221, ‘Development of high strength and fatigue resistance metal and manufacturing technology for root analogue dental implants’). It was funded by the Ministry of Trade, Industry & Energy (MOTIE, Korea) and the Technical support for small and medium-sized companies enterprises project (JE210006, Construction of a platform for Korean-Russian cooperation in industrial technology and science) funded by the Korea Institute of Industrial Technology.
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No potential conflict of interest was reported by the author(s).
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Notes on contributors
Dae-Kyeom Kim
Dae-Kyeom Kim is a Ph.D student at Hanyang University.
Young Il Kim
Young Il Kim is a MS student at Chungbuk National University.
Young Do Kim
Young Do Kim is a professor at Hanyang University.
Dongju Lee
Dongju Lee is a professor at Chungbuk National University.
Bin Lee
Bin Lee is a senior researcher at Korea Institute of Industrial Technology.
Taek-Soo Kim
Taek-Soo Kim is a principal researcher at Korea Institute of Industrial Technology.