Tailoring Microstructure and Tribological Properties of Cold Deformed TiZrAlV Alloy by Thermal Treatment  

作　　者：Guo-Sheng Zhang De-Feng Guo Ming Li Jing-Tao Li Qian Zhang Xiao-Hong Li Xiang-Yi Zhang 

机构地区：[1]State Key Laboratory of Metastable Materials Science andTechnology,Yanshan University,Qinhuangdao 066004,China [2]College of Science,Yanshan University,Qinhuangdao 066004,China

出　　处：《Acta Metallurgica Sinica(English Letters)》2017年第5期493-498,共6页金属学报（英文版）

基　　金：support of the National Basic Research Program of China(No.2010CB731606);the National Natural Science Foundation of China(Nos.51471144,51471145,and 51371074);the research project of the Ministry of Education(No.ZD2016076)of Hebei Province

摘　　要：Microstructure evolution and tribological properties of a new Ti Zr Al V alloy have been investigated in the present study. Various microstructures, i.e., equiaxed grain structure, dual-phase lamella structure, and heterogeneous lamellar structure, have been successfully prepared, and the effect of the microstructure on tribological properties was explored by means of cold severe plastic deformation combined with subsequent recrystallization annealing and aging treatments. The special heterogeneous lamellar-structured alloy exhibits a high ultimate tensile strength（~1545 MPa）,reasonable ductility（~7.9%）, and excellent wear resistance as compared with the equiaxed grain-structured and dualphase lamella-structured alloy. The present study demonstrates an alternative route for enhancing the tribological properties of alloys with heterogeneous lamellar structure.Microstructure evolution and tribological properties of a new Ti Zr Al V alloy have been investigated in the present study. Various microstructures, i.e., equiaxed grain structure, dual-phase lamella structure, and heterogeneous lamellar structure, have been successfully prepared, and the effect of the microstructure on tribological properties was explored by means of cold severe plastic deformation combined with subsequent recrystallization annealing and aging treatments. The special heterogeneous lamellar-structured alloy exhibits a high ultimate tensile strength（~1545 MPa）,reasonable ductility（~7.9%）, and excellent wear resistance as compared with the equiaxed grain-structured and dualphase lamella-structured alloy. The present study demonstrates an alternative route for enhancing the tribological properties of alloys with heterogeneous lamellar structure.

关 键 词：Titanium alloy Severe plastic deformation Thermal treatment Microstructure Tribological property 

分 类 号：TG146.23[一般工业技术—材料科学与工程] TG166.5[金属学及工艺—金属材料]