摘要
Abstract
In this study,cold-worked TA15 titanium alloy sheets were heat-treated at four temperatures:750℃,800℃,850℃,and 900℃,and the microstructure,room temperature tensile properties,bending properties,Rockwell hardness,and high-temperature performance after treatment were explored in depth.The results showed that at 750℃,the cross-section of the sheet exhibited an equiaxial structure,while the longitudinal section contained a small amount of elongated structure;however,within the temperature range of 800℃to 900℃,both the cross-section and longitudinal section of the sheet formed a uniform and fine equiaxial structure.As the heat treatment temperature increased from 750℃to 850℃,the tensile strength of the sheet gradually decreased,while the elongation and bending angle increased,and the Rockwell hardness gradually decreased.It's worth noting that the sheets heat-treated at 800℃to 850℃exhibited excellent overall performance,especially those heat-treated at 850℃which had completely recrystallized.Therefore,it is recommended that TA15 titanium alloy cold-rolled sheets be heat-treated within this temperature range to achieve the best microstructure and mechanical properties.关键词
TA15钛合金/板材/热处理/显微组织/力学性能Key words
TA15 titanium alloy/sheet/heat treatment/microstructure/mechanical properties分类
矿业与冶金
