Plasma surface tantalum alloying on titanium and its corrosion behavior in sulfuric acid and hydrochloric acid

被引：40

作者：

Wei, D. B. ^{[1
]}

Chen, X. H. ^{[1
]}

Zhang, P. Z. ^{[1
]}

Ding, F. ^{[1
]}

Li, F. K. ^{[1
]}

Yao, Z. J. ^{[1
]}

机构：

[1] Nanjing Univ Aeronaut & Astronaut, Coll Mat Sci & Technol, Jiangjun Rd 29, Nanjing 211100, Jiangsu, Peoples R China

来源：

APPLIED SURFACE SCIENCE | 2018年 / 441卷

基金：

美国国家科学基金会;

关键词：

Plasma surface alloying technology; Ti-Ta alloy coating; Anti-corrosion property; Titanium; TA; RESISTANCE; COATINGS; FILMS; STEEL;

D O I：

10.1016/j.apsusc.2018.02.058

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

An anti-corrosion Ti-Ta alloy coating was prepared on pure titanium surface by double glow plasma surface alloying technology. Electrochemical corrosion test was applied to test the anti-corrosion property of Ti-Ta alloy layer. The microstructure and the phase composition of Ti-Ta alloy coating were detected before and after corrosion process by means of scanning electron microscope (SEM), X-ray diffraction (XRD) and energy dispersive spectroscopy (EDS). The results showed that the Ta-Ti alloy layer has a thickness of about 13-15 mu m, which is very dense without obvious defects such as pores or cracks. The alloy layer is composed mainly of beta-Ta and alpha-Ti. The Ta alloy layer improves the anti-corrosion property of pure titanium. A denser and more durable TiO2 formed on the surface Ta-Ti alloy layer after immersing in strong corrosive media may account for the excellent corrosion resistant. (C) 2018 Elsevier B.V. All rights reserved.

引用

页码：448 / 457

页数：10

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