材料科学
微观结构
合金
变形(气象学)
冶金
严重塑性变形
钛合金
复合材料
作者
Qiang Meng,Xirong Yang,Wang Xin-han,Xiaoyan Liu
标识
DOI:10.1177/02670836241286397
摘要
The effect of Equal channel angular pressing (ECAP) deformation on the microstructure, mechanical properties, and aging behavior of solution treated Ti–1300 alloy was investigated. The results show that the grains are not broken during ECAP deformation due to coordination of grain rotation. The dominant deformation mechanism involved dislocation slip and twinning. The ECAP deformation has a significant effect on the subsequent aging behavior. The microstructure of aged samples comprised α s phase in β matrix. The precipitation of α s phase in the pre-deformed sample is higher than that in the solution treated sample, which is reflected in the improvement of microhardness of the pre-deformed + aging sample. The microhardness of the alloy after ECAP deformation increases with decreasing aging temperature and increasing aging time.
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