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vol.111 número3In search of low cost titanium: The Fray Farthing Chen (FFC) Cambridge processEstablishment of rapid prototyping/additive manufacturing in South Africa índice de autoresíndice de assuntospesquisa de artigos
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Journal of the Southern African Institute of Mining and Metallurgy

versão On-line ISSN 2411-9717

Resumo

GOSO, X.  e  KALE, A.. Production of titanium metal powder by the HDH process. J. S. Afr. Inst. Min. Metall. [online]. 2011, vol.111, n.3, pp. 203-210. ISSN 2411-9717.

Laboratory-scale tests were conducted at Mintek for the production of titanium powder from particulate Kroll sponge by the hydrogenation-dehydrogenation (HDH) process. The aim of this work was to produce titanium powder for powder metallurgical consolidations. The work involved the production of titanium powder at optimized conditions, which included hydrogenation in a horizontal tube furnace at 600°C for 2 hours, milling using planetary and roller mills, and dehydrogenation in a vacuumed retort fitted in a muffle furnace running at 700°C for 36 hours. The titanium powder produced in this project matched the elemental specifications of commercially available titanium powder, except for high carbon content. Nevertheless, the powder has been tested further in mechanical alloying and has been found suitable for the production of powder metallurgical compacts.

Palavras-chave : Powder metallurgy; titanium components; HDH process; ball milling.

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