Zr-xNb-4Sn alloys with low Young’s modulus and magnetic susceptibility for biomedical implants

Progress in Natural Science: Materials International

Ligang Zhang¹  Jiang Wang²  Dong Wang³  Renhao Xue³  Libin Liu³  Yueyan Tian³ 

[1] State Key Laboratory of Powder Metallurgy, Central South University, Changsha, Hunan, 410083, China;Guangxi Key Laboratory of Information Materials, Guilin University of Electronic Technology, Guilin, 541004, China;School of Material Science and Engineering, Central South University, Changsha, Hunan, 410083, China;

关键词: Zirconium-based alloys;    Microstructure;    Mechanical properties;    Phase transformation;    Biomedical materials;   

DOI  :  

来源: DOAJ

【 摘 要 】

The microstructure, mechanical and magnetic properties of Zr–x (8, 9, 10, wt.%)Nb–4Sn alloys were investigated to obtain novel Zr-based alloy with low Young’s modulus and magnetic susceptibility for biomedical implants. After homogenization annealing, hot forging and solution annealing, Zr–8Nb–4Sn, Zr–9Nb–4Sn and Zr–10Nb–4Sn alloys were composed of β+α″ phase, β+α″ phase, β+ω phase, respectively. The temperature at which the α'' and ω phase were transformed into β phase during the heating process was about 200 ​°C, and the phase transformation temperature decreased with the increase of Nb element. Among all the Zr–x (x ​= ​8,9,10)Nb–4Sn(wt.%) alloys, Zr–9Nb–4Sn alloy had the lowest Young's modulus of 46.6 ​GPa and the low magnetic susceptibility of 1.294 ​× ​10−6 cm3g−1, which has a good application prospect for biomedical applications.

【 授权许可】

Unknown