Improved corrosion behaviour of electron beam melted Ti-6Al-4V alloy in phosphate buffered saline

被引：230

作者：

Bai, Yun ^{[1
]}

Gai, Xin ^{[1
]}

Li, Shujun ^{[1
]}

Zhang, Lai-Chang ^{[2
]}

Liu, Yujing ^{[1
]}

Hao, Yulin ^{[1
]}

Zhang, Xing ^{[1
]}

Yang, Rui ^{[1
]}

Gao, Yongbo ^{[3
]}

机构：

[1] Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Peoples R China

[2] Edith Cowan Univ, Sch Engn, 270 Joondalup Dr, Perth, WA 6027, Australia

[3] Zunyi Med Coll, Longgang Dist Cent Hosp, Dept Stomatol, Shenzhen, Guangdong, Peoples R China

来源：

CORROSION SCIENCE | 2017年 / 123卷

关键词：

Titanium; Electron beam melting; EIS; Polarisation; Passive films; MECHANICAL-PROPERTIES; TITANIUM-ALLOYS; FATIGUE BEHAVIOR; TI ALLOYS; MICROSTRUCTURE; RESISTANCE; TRANSFORMATION; KINETICS;

D O I：

10.1016/j.corsci.2017.05.003

中图分类号：

T [工业技术];

学科分类号：

120111 [工业工程];

摘要：

The electrochemical corrosion behaviour of Ti-6Al-4V prepared by electron beam melting was investigated in phosphate buffered saline and compared with those of traditional wrought counterpart. Electrochemical results showed EBM-produced Ti-6Al-4V possesses slightly better corrosion resistance than the wrought Ti-6Al-4V, which is attributed to larger proportions of beta phase and ultrafine-grained lamellar alpha/beta phases in the microstructure of EBM-produced Ti-6Al-4V. The beta phase enhances the resistance of charge transfer, thereby reducing the rate of metal dissolving reaction; while the alpha/beta phases result in homogenous distribution of alloying elements in different phases thus restraining the galvanic effect between alpha and beta phases.

引用

页码：289 / 296

页数：8

共 43 条

[1]

Corrosion evaluation of Ti-6Al-4V parts produced with electron beam melting machine [J].