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医用钛合金的微弧氧化膜层组织及其磨损性能-中国有色金属学报
20 1 2010 10
Vol.20 Special 1 The Chinese Journal of Nonferrous Metals Oct. 2010
1004-0609(2010)S1-s0188-05
( 100088)
X (XRD)(SEM)
TiO SiO TiO 0.7
2 2 2
0.1
TG146.23 TG174.45 A
Microstructure and its wear property of micro-arc oxidation
coating on biomedical titanium alloy
WANG Yan-ling, HUI Song-xiao, YE Wen-jun, MI Xu-jun
(General Research Institute for Nonferrous Metals, Beijing 100088, China)
Abstract: The coating prepared by micro-arc oxidation (MAO) on biomedical titanium alloy was investigated. The
surface morphology and chemical composition of MAO coating were analyzed by X-ray diffractometry and scanning
electron microscopy (SEM). The anti-wear property of the coating was measured through small amplitude oscillatory
reciprocating friction and wear test. The results show that the MAO coating has some micropores with different
dimensions and the inner layer of the coating is denser compared with the outer layer. The composition of the coating
comprises majority of rutile TiO and amorphous phase SiO . A fraction of the composition is anatase TiO . The
2 2 2
preliminary friction coefficient of the coating decreases from 0.7 to 0.1. The micro-arc oxidation treatment improves the
anti-wear property of the titanium alloy.
Key words: titanium alloy; bi
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