Effect of heat treatment on the microstructure and mechanical properties of TA15 alloy fabricated by LMD

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Abstract The use of advanced techniques for manufacturing products requires the careful choosing of appropriate substances for each industry. Titanium-infused alloys are commonly utilized in sectors such as aerospace, naval architecture, and mechanical systems engineering. The advancement in near-α titanium alloys is regarded as a major milestone in the advanced study and thermal processing of titanium-based metal alloys. This study focused on enhancing thermal processing techniques for next-generation heat-resistant titanium-based alloys fabricated via laser melting deposition (LMD). Heat processing was carried out within a temperature range of 750-1, 050°C, encompassing three distinct typical temperature ranges, i.e. HT1, maintained at 750°C being beneath beta transition temperature of TA15, HT2 (950°C) temperature approaching the β-phase change threshold and HT3 (1, 050°C) exceeding β transition temperature. The impact of thermal processing on structure and the mechanical characteristics of TA15 titanium at ambient temperature LMD samples is examined.

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