Effects of heat treatment on microstructure and properties of selective laser melted titanium aluminide alloy
Igor Polozov (St. Petersburg Polytechnic University)
Artem Kantyukov (St. Petersburg Polytechnic University)
Kirill Starikov (St. Petersburg Polytechnic University)
Anna Gracheva (St. Petersburg Polytechnic University)
V Popovich (TU Delft - Team Vera Popovich)
Anatolii Popovich (St. Petersburg Polytechnic University)
More Info
expand_more
Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.
Abstract
Titanium aluminide alloys are considered to be attractive materials for aerospace and automotive high-temperature applications due to their high specific strength, creep resistance, and heat resistance. However, their brittleness makes it difficult to manufacture complex-shaped components of these alloys using conventional processes making additive manufacturing a promising way to produce titanium aluminide parts. Additive manufacturing of titanium aluminide alloys involves high preheating temperatures affecting their microstructure; hence a proper heat treatment is needed to obtain desired properties. In this paper, a titanium aluminide alloy produced using Selective Laser Melting process with a high-temperature preheating was subjected to various heat treatments to study their effects on microstructure and properties of the alloy.