摘要
本文研究了双重退火热处理对变形TC4钛合金显微组织及性能影响,实验结果表明:随着一重退火温度的升高,组织尺寸发生长大,分布较为均匀,材料的强度随退火温度的升高而下降,而塑性增加;双重退火后,材料内部析出次生α相数量增多,尺寸增大,得到典型的等轴α+晶间β组织,较一重退火强度有所降低,而塑性有很大的提升。
The effect of dual-annealing heat treatment on microstructure and properties of deformed TC4 titanium alloy was studied. The experimental results show that with the increase of the first annealing temperature,the size of the microstructure increases and the distribution is uniform. As annealing temperature rises,the strength of material decreases,but the plasticity increases. After the second annealing,the number of secondary α phases in the material increases,so does the size. The typical equiaxed α+ intergranular β structure is obtained. The strength after the second annealing is lower than that after the first annealing while the plasticity is greatly improved.
作者
龙玮
夏麒帆
张松
梁益龙
欧梅桂
LONG Wei;XIA Qifan;ZHANG Song;LIANG Yilong;OU Meigui(School of Materials and Metallurgy, Guizhou University, Guiyang 550025, China;National Local Joint Engineering Laboratory for High Performance Metal Structure Materials and Manufacturing Technology, Guiyang 550025, China)
出处
《贵州大学学报（自然科学版）》
2019年第5期50-54,共5页
Journal of Guizhou University:Natural Sciences
基金
贵州省科学技术基金项目资助(黔科合基础[2018]1027)
贵州省教育厅工程研究中心项目资助(黔教合KY字[2017]016)
贵州省科技支撑计划项目资助(黔科合支撑[2019]2165号)
贵州省重大专项项目资助(黔科合重大专项字(2014)6013)
关键词
TC4钛合金
双重退火
形变热处理
力学性能
TC4 titanium alloy
dual annealing
deformation heat treatment
mechanical property
