钢铁钒钛2025，Vol.46Issue(1)：60-66,7.DOI:10.7513/j.issn.1004-7638.2025.01.009
冷轧变形量及退火温度对纯钛无缝管组织及性能影响
Influences of cold rolling deformation and annealing temperature on the microstructures and properties of pure titanium seamless tubes
李晓煜 1程小伟 1肖强 1唐敏 1刘昕 1李露 2秦回一2
作者信息
- 1. 钒钛资源综合利用国家重点实验室,四川攀枝花 617000||成都先进金属材料产业技术研究院股份有限公司,四川成都 610300
- 2. 攀钢集团江油长城特殊钢有限公司,四川江油 621701
- 折叠
摘要
Abstract
Pure titanium tubes with different cold rolling deformations were annealed at different tem-peratures(450、470、490 ℃)to investigate the influences of deformations and annealing temperatures on the microstructures,texture evolution and mechanical properties of tubes.It is shown that the micro-structure of the cold-rolled tubes with small deformation contains a great amount of twins,which mainly consist of {11(2)2 }<11(23)>compression twins and {10(1)2}<10(1)1>tensile twins.The grains in the cold-rolled tubes with the greater deformation were severely deformed,along with the reduction of twins amount which is dominated by compression twins.The microstructure of tubes with the large deforma-tion shows a strong texture of<10(1)0>//AD,and the other tube with small deformation shows a basal bimodal basal texture.The recrystallization proportion of the pure titanium tube,which is more severely deformed,increases gradually with the increase in annealing temperatures and its ratio reaches 50.5％after 490 ℃ annealing.Meanwhile,the tensile strength of the strongly deformed tubes decreases dra-matically after 490 ℃ annealing,with the weakening of the cold-rolled texture and intensifying of the bimodal basal texture.The microstructural change of seamless tubes with the small deformation is not obvious,with a gentle reduction of the tensile strength,and the texture changes gradually from the bimodal basal texture to<1010>//AD texture with the increase in annealing temperatures.关键词
冷轧变形/TA1/退火温度/组织演变/力学性能Key words
cold rolling deformation/TA1/annealing temperature/microstructural evolution/mechan-ical properties分类
矿业与冶金引用本文复制引用
李晓煜,程小伟,肖强,唐敏,刘昕,李露,秦回一..冷轧变形量及退火温度对纯钛无缝管组织及性能影响[J].钢铁钒钛,2025,46(1):60-66,7.
