Distinction in corrosion resistance of selective laser melted Ti-6Al-4V alloy on different planes

被引：360
作者：
Dai, Nianwei [1 ]
Zhang, Lai-Chang [2 ]
Zhang, Junxi [1 ]
Zhang, Xin [1 ]
Ni, Qingzhao [1 ]
Chen, Yang [1 ]
Wu, Maoliang [1 ]
Yang, Chao [3 ]
机构：
[1] Shanghai Univ Elect Power, Shanghai Key Lab Mat Protect & Adv Mat Elect Powe, Shanghai 200090, Peoples R China
[2] Edith Cowan Univ, Sch Engn, 270 Joondalup Dr, Perth, WA 6027, Australia
[3] South China Univ Technol, Natl Engn Res Ctr Near Net Shape Forming Metall M, Guangzhou 510640, Guangdong, Peoples R China
来源：
CORROSION SCIENCE | 2016年 / 111卷
基金：
澳大利亚研究理事会;
关键词：
Titanium; X-ray diffraction; EIS; SEM; Passivity; COMMERCIALLY PURE TITANIUM; SIMULATED BODY-FLUID; MECHANICAL-PROPERTIES; BIOMEDICAL APPLICATIONS; TI6AL4V ALLOY; ELECTROCHEMICAL-BEHAVIOR; IMPEDANCE SPECTROSCOPY; NITRIDED TI-6AL-4V; POROUS TITANIUM; MICROSTRUCTURE;
D O I：
10.1016/j.corsci.2016.06.009
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Electrochemical measurements and microstructural analysis were performed to study the corrosion resistance of different planes of Ti-6Al-4V alloy manufactured by selective laser melting (SLM). The electrochemical results suggest that its XY-plane possesses a better corrosion resistance compared to XZ-plane in 1 M HCl solution, in spite of slight difference in 3.5 wt.% NaCl solution, suggesting that the different planes exhibit more pronounced distinction in corrosion resistance in harsher solution system. The inferior corrosion resistance of XZ-plane is attributed to the presence of more alpha' martensite and less beta-Ti phase in microstructure for XZ-plane than for XY-plane of the SLM-produced Ti-6Al-4V alloy. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：703 / 710
页数：8
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