Effect of annealing temperature on microstructure and mechanical properties of ultra-fine grained commercial pure titanium

doi:10.13251/j.issn.0254-6051.2023.10.018

Abstract

Abstract: Ultra-fine grained (UFG) commercial pure titanium was produced by equal channel angular pressing (ECAP), and then the UFG Ti was short-time annealed at different temperatures. The effect of annealing temperature on the microstructure and mechanical properties of the UFG Ti was studied. The results show that after short-time annealing at 300-400 ℃, the grain sizes of the UFG Ti are not significantly increased, the basal texture is enhanced, and the strength is improved, with good ductility maintained. With the increase of annealing temperature, the grain size of the UFG Ti increases obviously and the strength decreases gradually.

Key words: commercial pure titanium (CP-Ti), ultra-fine grain, annealing, microstructure, mechanical properties

CLC Number:

TG146.2

Gu Yanxia, Jiang Jinghua, Ma Aibin, Wu Haoran. Effect of annealing temperature on microstructure and mechanical properties of ultra-fine grained commercial pure titanium[J]. Heat Treatment of Metals, 2023, 48(10): 129-133.

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