Enhanced anticorrosion and antiwear properties of Ti–6Al–4V alloys with laser texture and graphene oxide coatings

Enhanced anticorrosion and antiwear properties of Ti–6Al–4V alloys with laser texture and graphene oxide coatings
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激光织构和氧化石墨烯涂层增强Ti-6Al-4V合金的防腐和抗磨性能

DOI:
10.1016/j.triboint.2020.106475
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发表时间:
2020-12
影响因子:
6.2
通讯作者:
Yadong Zhang
Yadong Zhang
中科院分区:
工程技术1区
文献类型:
--
作者:
Chenchen Wang;Zhipeng Li;Hui Zhao;Gangqiang Zhang;Tianhui Ren;Yadong Zhang

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Ti-6Al-4V较差的耐磨性能限制了其作为生物医学材料的应用。在这项工作中,分别通过激光加工和化学组装在Ti-6Al-4V表面构建了不同槽宽和氧化石墨烯(GO)涂层的微槽。系统研究了微槽宽度对GOs涂层Ti-6Al-4V合金耐腐蚀性和生物摩擦学性能的影响。结果表明,由于 Ti−45 基体的表面微观结构均匀化和 GO 涂层的屏蔽作用,槽宽 45 μm 的 GOs 涂层样品(Ti-45-GO)可以有效提高 Ti-6Al-4V 的耐腐蚀性能。此外,由于捕获了微槽的磨损碎片以及 GO 涂层的高强度和弹性,Ti-45-GO 样品表现出优异的抗磨损性能。
The poor antiwear properties of Ti–6Al–4V have restricted its applications as biomedical materials. In this work, microgrooves with different groove width and graphene oxide (GO) coating were constructed on the surface of Ti–6Al–4V by laser processing and chemical assembly, respectively. The effects of microgroove width on the anticorrosion and biotribological properties of GOs-coated Ti–6Al–4V alloys were systematically investigated. The results indicate that the GOs-coated sample with 45 μm groove width (Ti-45-GO) can effectively improve the anticorrosion of Ti–6Al–4V, due to the surface microstructure homogenization from Ti−45 substrate and the shielding effect of GO coatings. Furthermore, the Ti-45-GO sample exhibits excellent antiwear properties, owing to the capture of wear debris of microgrooves and the high strength and resilience from GO coatings.
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