TA2纯钛表面激光气体氮化工艺研究
发布时间：2018-08-18 15:37
【摘要】：采用Nd:YAG激光器在氮气环境中对TA2纯钛进行激光气体氮化处理,研究了不同工艺下TA2纯钛表面激光气体氮化层的宏观形貌、物相组成、显微组织、硬度及摩擦磨损性能。结果表明,经过激光表面氮化处理后,氮化层与基体之间为冶金结合,氮化层的组织主要由细小的、枝晶状的Ti N构成。激光离散氮化可显著降低材料表面的摩擦系数,提高材料的耐磨性能,且氮化强化区域的分布越密集,摩擦系数值越小,耐磨性越好。激光离散氮化还可以提高加工效率,抑制裂纹的萌生。
[Abstract]:The laser gas nitriding of pure titanium TA2 was carried out by Nd:YAG laser in nitrogen environment. The macro-morphology, phase composition, microstructure, hardness and friction and wear properties of laser gas nitriding layer on the surface of pure titanium TA2 were studied under different processes. The microstructure of the nitrided layer is mainly composed of fine dendritic Ti N. Laser discrete nitriding can significantly reduce the friction coefficient of the material surface and improve the wear resistance of the material.
【作者单位】： 西北有色金属研究院;
【基金】：国家自然科学基金青年基金项目(51701165) 中国博士后科学基金面上项目资助(2017M623334XB)
【分类号】：TG178
[Abstract]:The laser gas nitriding of pure titanium TA2 was carried out by Nd:YAG laser in nitrogen environment. The macro-morphology, phase composition, microstructure, hardness and friction and wear properties of laser gas nitriding layer on the surface of pure titanium TA2 were studied under different processes. The microstructure of the nitrided layer is mainly composed of fine dendritic Ti N. Laser discrete nitriding can significantly reduce the friction coefficient of the material surface and improve the wear resistance of the material.
【作者单位】： 西北有色金属研究院;
【基金】：国家自然科学基金青年基金项目(51701165) 中国博士后科学基金面上项目资助(2017M623334XB)
【分类号】：TG178
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