Formation of ZrO2 coating on the NiTi alloys for improving their surface properties

被引：34

作者：

Sui, J. H.

Cai, W.

机构：

[1] Harbin Inst Technol, Sch Mat Sci & Engn, Harbin 150001, Peoples R China

[2] Jiamusi Univ, Sch Mat Sci & Engn, Jiamusi 154007, Peoples R China

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 2006年 / 251卷 / 02期

基金：

中国国家自然科学基金;

关键词：

NiTi alloys; ZrO2; coating; plasma immersion ion implantation and deposition (PIIID); corrosion resistance;

D O I：

10.1016/j.nimb.2006.06.028

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

ZrO2 films were fabricated by plasma immersion ion implantation and deposition (PIIID) on the polished NiTi alloys. The results obtained from X-ray diffraction (XRD) and scanning electronic microscopy (SEM) showed the dense and well adhered ZrO2 coating were successfully fabricated by PIIID. Pin-on-disc and scratch tests revealed the surface friction coefficient of NiTi alloys was decreased due to the ZrO2 coating and good adhesion strength between the coating and substrate was obtained, respectively. Potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) studies indicated a significantly larger increase of the coated sample in the corrosion resistance compared with the uncoated samples. The mechanism of the improvement in the corrosion resistance of NiTi alloys due to ZrO2 coating was clarified. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：402 / 406

页数：5

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