摘要
利用微弧氧化技术在Ti6Al4V合金表面制备了富含钙、磷的多孔氧化陶瓷层,研究了微弧氧化层表面形貌、组成及摩擦学性能。研究结果表明,随着电压的升高,氧化层表面微孔孔径、粗糙度和Ca、P元素含量增大,显微硬度增大。25%小牛血清润滑条件下的微弧氧化层与ZrO2陶瓷球的摩擦学实验表明,微弧氧化层的摩擦因数高于Ti6Al4V钛合金,但磨损率明显降低,表明微弧氧化Ti6Al4V合金具有良好的耐磨性能。
Microarc oxidation （MAO） was used to prepare ceramic oxide layer containing calcium and phosphate on surface of Ti6A14V alloy. The surface topographies, elements and biotribological behaviors of micro-arc oxidation film on titanium alloy were examined. The experimental results show that the size of pore on the oxide film surface, the surface roughness and the contents of calcium and phosphate increase with the increase of the applied anodic voltage, and the micro-hardness of the oxide film surface is improved. The results of ZrO2 ceramic ball siding against the oxide film under 25% calf bovine synovia lubrication indicate that the friction coefficients of MAO films are higher than that of the bare Ti6M4V alloy,but the wear rates decrease obviously compared with Ti6M4V alloy,which exhibits good anti-wear property.
出处
《润滑与密封》
CAS
CSCD
北大核心
2007年第11期118-121,共4页
Lubrication Engineering
基金
中国矿业大学基金项目(2005B032)
江苏省自然科学基金项目(BK2005019)
关键词
钛合金
微弧氧化
摩擦磨损
titanium alloy
microarc oxidation
biotribology property
