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논문 기본 정보

자료유형
학술저널
저자정보
Jing Zhang (Donghua University) Kangmei Li (Donghua University) Jun Hu (Donghua University)
저널정보
대한금속·재료학회 Metals and Materials International Metals and Materials International Vol.27 No.11
발행연도
2021.11
수록면
4,757 - 4,767 (11page)
DOI
10.1007/s12540-020-00772-z

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초록· 키워드

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To enhance the corrosion and wear resistance of biological titanium alloy Ti6Al4V in the human body, plasma nitriding+ plasma enhanced chemical vapor deposition (PN + PECVD), laser remelting (LR) process were employed to modifythe titanium alloy, respectively. The microhardness of LR and PN + PECVD samples was reported to increase by 117% and165%, respectively, in contrast to that before the samples were modified. The thickness of LR modified layer was reportedas 10 μm, and the nitrided film on the surface of PN + PECVD sample exhibited the thickness of 2 μm. The wear and corrosionperformances of three samples were analyzed by friction and corrosion experiments in the simulated body fluid. Asrevealed from the experimental results, the wear rates of LR and PN + PECVD samples were 74.1% and 94.5% lower thanthat of Ti6Al4V. It can be seen that the surface modification layer can play a good role in protecting Ti6Al4V substrate fromwear. By the electrochemical corrosion experiment, the corrosion resistance of Ti6Al4V, LR and PN + PECVD samples wasranked as PN + PECVD > LR > Ti6Al4V. It is therefore speculated that the PN + PECVD and LR modification processescould noticeably enhance the corrosion and wear resistance of Ti6Al4V in the human body.

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