Journal
JOURNAL OF THERMAL SPRAY TECHNOLOGY
Volume 27, Issue 8, Pages 1381-1387Publisher
SPRINGER
DOI: 10.1007/s11666-018-0760-9
Keywords
bioactivity; corrosion resistance; hydroxyapatite coating; magnesium alloy; plasma spraying
Categories
Funding
- National Natural Science Foundation of China (NSFC) [51704073]
- Jilin Province Department of Education Thirteen Five'' science and technology research project of China [JJKH20180427KJ]
- Science and Technology Development of Jilin Province [20180520065]
- Jilin City Science and Technology Bureau Outstanding Young Talents Training Project [201831785]
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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.
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