Journal of Powder Materials (한국분말재료학회지)

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
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Current Status of Titanium Smelting Technology for Powder Metallurgy

분말야금을 위한 타이타늄 제련기술 현황

  • Sohn, Ho-Sang (School of Materials Science and Engineering, Kyungpook National University)
  • Received : 2021.04.16
  • Accepted : 2021.04.27
  • Published : 2021.04.28
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Abstract

Titanium is the ninth most abundant element in the Earth's crust and is the fourth most abundant structural metal after aluminum, iron, and magnesium. It exhibits a higher specific strength than steel along with an excellent corrosion resistance, highlighting the promising potential of titanium as a structural metal. However, titanium is difficult to extract from its ore and is classified as a rare metal, despite its abundance. Therefore, the production of titanium is exceedingly low compared to that of common metals. Titanium is conventionally produced as a sponge by the Kroll process. For powder metallurgy (PM), hydrogenation-dehydrogenation (HDH) of the titanium sponge or gas atomization of the titanium bulk is required. Therefore, numerous studies have been conducted on smelting, which replaces the Kroll process and produces powder that can be used directly for PM. In this review, the Kroll process and new smelting technologies of titanium for PM, such as metallothermic, electrolytic, and hydrogen reduction of TiCl4 and TiO2 are discussed.

Keywords

Acknowledgement

본 논문은 산업통상자원부의 산업기술혁신사업 중 산업핵심기술개발사업의 지원에 의해 연구되었으며, 이에 감사드립니다(과제번호: 10063143).

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