The effect of aging on mechanical properties and wear resistance of Ti-Cu-Fe alloy for biomedical application  

作　　者：Nannan Zheng Xinru Mao JiaYu Wang Lei Yang Erlin Zhang 

机构地区：[1]Key Laboratory for Anisotropy and Texture of Materials,Education Ministry of China,School of Materials Science and Engineering,Northeastern University,Shenyang,110819,China

出　　处：《Progress in Natural Science:Materials International》2024年第6期1216-1224,共9页自然科学进展·国际材料(英文版)

基　　金：the financial support from National Key R&D Program of China(No.2022YFE0122800);National Natural Science Foundation of China(No.32371390);Liaoning Province Science and Technology Plan Joint Plan(2023JH2/101700301)

摘　　要：The effect of aging treatment on the microstructure,mechanical properties,wear resistance,biocorrosion behavior,antibacterial properties and cytocompatibility of Ti-5Cu-2Fe alloys was investigated in this paper to reveal the potential application as a biomedical implant.The results showed that the aging at 773 K induced martensitic phase transformation with very fine martensitic laths and the presence of intertwined dislocation cells as well as the precipitation of Ti_(2)Cu phase,which resulted high hardness,flexural strength,elastic modulus,and good wear resistance.The aging at higher temperature,873 K,led to the formation of equiaxialα-phase and wider lamellarα-phase,and increase in the number and size ofα-phase and Ti_(2)Cu phases.As a result,the hardness,strength,wear resistance,and corrosion resistance were reduced but the plasticity was significantly improved.The aging treatment provided Ti-5Cu-2Fe alloy with strong antibacterial properties and a good cytocompatibility.It is suggested that the mechanical properties could be controlled by the aging treatment depending on the application requirement.

关 键 词：Antibacterial titanium alloy AGING Microstructure Mechanical properties Corrosion behavior Ti-5Cu-2Fe alloy 

分 类 号：TG146.23[一般工业技术—材料科学与工程] TG156.92[金属学及工艺—金属材料]