MICROSTRUCTURE AND MECHANICAL PROPERTIES OF HEAT TREATED SELECTIVE LASER MELTING MANUFACTURED TI-6AL-4V
Denis David Malka-Markovitz, Alexander Katsman, Amnon Shirizly, Menahem Bamberger
Pagini: 495-505
Publicat: 11 Jul 2016
Vizualizări: 2,912
Descărcări: 736
Citations: 2 (Google Scholar)
Citations: 2 (OpenAlex)
Rezumat: Investigation of microstructural evolution of pre and post heat treatment (HT) Selective Laser Melting (SLM) Ti-6Al-4V is presented. As received SLM samples composed of fine acicular α martensite with prior β grains were solution treated above β-transus temperature, followed by a complementary HT within the α+β range. Non-monotonic change of microhardness as a function of HT temperature was observed. After low HT temperatures, the microstructure was composed mainly of martensitic α′ phase, whereas, after high temperatures HT, bi-phasic microstructure with needle-like elongated α-phase grains and a mixture of lamellar α+β in between, was observed as the dominant microstructural component. The dependence of the properties and microstructure on heat treatment temperature will be discussed.
Cuvinte cheie: slm, ti-6al-4v, microstructure, thermal treatments, mechanical properties
Citează acest articol: Denis David Malka-Markovitz, Alexander Katsman, Amnon Shirizly, Menahem Bamberger. MICROSTRUCTURE AND MECHANICAL PROPERTIES OF HEAT TREATED SELECTIVE LASER MELTING MANUFACTURED TI-6AL-4V. Journal of International Scientific Publications: Materials, Methods & Technologies 10, 495-505 (2016). https://www.scientific-publications.net/en/article/1001172/
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