Plasma-Sprayed Hydroxyapatite Coating for Improved Corrosion Resistance and Bioactivity of Magnesium Alloy

被引：41
作者：
Gao, Ya Li [1 ]
Liu, Yu [1 ]
Song, Xue Ying [1 ]
机构：
[1] Northeast Dianli Univ, Sch Mech Engn, Jilin 132012, Jilin, Peoples R China
来源：
JOURNAL OF THERMAL SPRAY TECHNOLOGY | 2018年 / 27卷 / 08期
基金：
中国国家自然科学基金;
关键词：
bioactivity; corrosion resistance; hydroxyapatite coating; magnesium alloy; plasma spraying; BLOOD COMPATIBILITY; MG ALLOY; BEHAVIOR; DEGRADATION; DEPOSITION; TI-6AL-4V; CALCIUM; HA;
D O I：
10.1007/s11666-018-0760-9
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
In the present study, the corrosion resistance and bioactivity of AZ91HP magnesium alloy were improved by plasma spraying hydroxyapatite (HA) coating. X-ray diffraction measurements indicated that the coating formed amorphous and little -Ca-3 (PO4)(2) besides of HA. The corrosion resistance and bioactivity of the coating and magnesium alloy in simulated body fluid were investigated using immersion test. The coating showed lower corrosion rate and better bioactivity than magnesium alloy. The coating significantly improved the hydrophilicity of Mg alloy. The prothrombin time of the coating was 18s, and the prothrombin time of Mg alloy was 11s, so the coating had better anticoagulant activity.
引用
收藏
页码：1381 / 1387
页数：7
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