医用钛合金表面纳米晶TiN梯度涂层的显微组织及腐蚀磨损性能（英文）

被引：8
作者：
崔文芳 [1 ]
牛凤娟 [2 ]
谭韵玲 [1 ]
秦高梧 [1 ]
机构：
[1] 东北大学材料科学与工程学院材料各向异性与织构教育部重点实验室
[2] 歌尔声学股份有限公司质检部
来源：
TransactionsofNonferrousMetalsSocietyofChina | 2019年 / 29卷 / 05期
关键词：
TiN涂层; 纳米晶; 硬度; 结合性; 腐蚀磨损性能;
D O I：
暂无
中图分类号：
TG178 [各种金属及合金的腐蚀、防腐与表面处理];
学科分类号：
摘要：
采用磁控溅射方法在Ti6Al4V钛合金表面制备纳米晶TiN梯度涂层,研究涂层的显微组织和力学性能,并对涂层和Ti6Al4V合金基体在生理环境中的电化学腐蚀行为和腐蚀磨损性能进行比较。结果表明:纳米晶TiN的梯度分布有利于释放涂层中的内应力,使粘附强度增加到90 N。致密的结构和细化的晶粒使涂层表面纳米硬度达到28.5 GPa,纳米晶TiN涂层的防腐蚀效率达到96.6%。与Ti6Al4V合金基体相比,纳米晶TiN涂层的耐腐蚀磨损性能提高了100倍。纳米晶TiN梯度涂层具有良好的化学稳定性和较高的H3/E2比（H为硬度,E为弹性模量）,是改善耐腐蚀性能和抗磨损性能的主要原因。
引用
收藏
页码：1026 / 1035
页数：10
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