Abstract

Ti6Al4V titanium alloy has poor friction and wear resistance. Metal heat treatment can improve the performance of the material by changing the microstructure. In this paper, Ti6Al4V titanium alloys are manufactured by heat-treating electron powder bed fusion, and the friction and wear properties of samples under dry friction conditions after various heat treatments are analyzed, and the tribological mechanism is explored. It is found that HT3 has the smallest coefficient of friction (COF) but the largest amount of wear (AOW), and abrasive wear and adhesive wear mainly occur. The COF of HT9 is a little smaller while the AOW is much smaller than HT3, and adhesive wear and corrosive wear mainly occur. This work has reference significance for improving the performance of Ti6Al4V titanium alloy manufactured by EPBF.

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