Biotribological Behaviors of Micro-arc Oxidation Film on Zircalloy-4

Liu Jinhui1; Zhang Peng1; Li Wei1; Liu Ying1

Views : 0 下载量: 187 CSCD: 1

Export
Share
Collection
Album

Biotribological Behaviors of Micro-arc Oxidation Film on Zircalloy-4
Vol. 31, Issue 5, Pages: 454-457(2011)
Published： 2011 ，
DOI：

扫描看全文

[1]刘晋珲,张鹏,李卫,刘英.Zr-4合金微弧氧化层的生物摩擦学性能[J].特种铸造及有色合金,2011,31(05):454-457+390.

Liu Jinhui1, Zhang Peng1, Li Wei1, et al. Biotribological Behaviors of Micro-arc Oxidation Film on Zircalloy-4. [J]. Special Casting & Nonferrous Alloys 31(5):454-457(2011)
[1]刘晋珲,张鹏,李卫,刘英.Zr-4合金微弧氧化层的生物摩擦学性能[J].特种铸造及有色合金,2011,31(05):454-457+390. DOI：

Liu Jinhui1, Zhang Peng1, Li Wei1, et al. Biotribological Behaviors of Micro-arc Oxidation Film on Zircalloy-4. [J]. Special Casting & Nonferrous Alloys 31(5):454-457(2011) DOI：

摘要

采用含Ca、P电解液

450V微弧氧化在Zr-4合金表面制备氧化膜层

在25%小牛血清润滑条件下做球盘往复式摩擦磨损试验

重点研究了氧化膜层的摩擦磨损特性。结果表明

微弧氧化膜层含Ca、P

主要由立方相氧化锆、四方相氧化锆和少量单斜相氧化锆构成

膜层表面粗糙多孔

有少量的微裂纹。Zr-4合金微弧氧化层与Si3N4球的摩擦因数低于Zr-4合金与Si3N4球的

氧化膜层硬度较高

摩擦副间的接触面积较小

膜层微孔储存小牛血清湿式润滑作用

均有利于摩擦因数降低。Zr-4合金微弧氧化层磨损量明显低于Zr-4合金

微弧氧化层硬度高是主要原因。Zr-4合金摩擦磨损以显微切削机制为主

微弧氧化层摩擦磨损则兼有疲劳剥落和显微切削两种机制。

Abstract

Zirconia films were prepared by micro-arc oxidation（MAO） at the applied voltages of 450V in an aqueous solution containing Ca and P.The tribological behaviors of the films were mainly investigated by using ball-on-disc reciprocating friction and wear testing in 25% calf bovine synovia luburication.The results show that MAO zirconia films containing Ca and P are mainly composed of cubic zirconia

tetragonal zirconia and monoclinal zirconia

and the surface of the films exhibits porous structure with a few micro-cracks.Frictional coefficient of MAO films sliding against Si3N4 ceramic ball is lower than that of the untreated Zr-4 alloy

which is attributed to the higher hardness of the films and the less contact area between friction pairs and the micro-pore good for wet lubrication stored a lot of calf bovine synovia.Wear volume of the MAO samples is decreased obviously compared with that of the un-treated Zr-4 alloy

which is the result of higher hardness of the MAO film.The main wear mechanism of Zr-4 alloy is characterized by micro-cutting

while that of the MAO treated Zr-4 alloy is characterized by both fatigue peeling and micro-cutting.