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首页> 外文会议>Nanotechnology 2011: Advanced materials, CNTs, particles, films and composites : Technical proceedings >Microst met lire and tribological properties of CrTiAIN composite coatings with high Cr content on 65Mn steels deposited by multi arc ion plating technology
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Microst met lire and tribological properties of CrTiAIN composite coatings with high Cr content on 65Mn steels deposited by multi arc ion plating technology

机译：多弧离子镀技术在65Mn钢上高Cr含量的CerTAIN复合涂层的净净重和摩擦学性能

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摘要

The CrTiAIN composite coatings with different chemical composition are deposited on the surface of 65Mn steels by multi-ion plating technology in a gas mixture of Ar+N_2. The Metallic ratio of Cr, Ti, and Al was varied by adjusting the currents of different TiAl target. The coatings were characterized by means of energy dispersive X-ray(EDX) analysis, X-ray diffractmetry(XRD), scanning electronic microscopy(SEM), microhardness tester, and ball-on-disc tribometer , respectively. The experimental results show that the surface morphology of CrAlTiN films are compact and dense. And the cross-section morphology appears as fibrous columnar crystals structure. Compared with CrN coatings, the preferential growth orientation of CrAlTiN films was changed from CrN (111) to CrN (200) after the addition of Ti, Al element. When the TiAl target arc current was 50A, the hardness reach the maximum value, 35GPa. The CrAlTiN composite films performs better than binary CrN as well as the Cr plating in teams of hardness and wear resistance at high temperature. Then the tribological mechanisms at high temperature for the above three kinds of coatings was discussed.
机译：通过多离子镀技术，在Ar + N_2的混合气体中，将具有不同化学成分的CrTiAIN复合涂层沉积在65Mn钢的表面上。 Cr，Ti和Al的金属比可通过调节不同TiAl靶的电流来改变。分别通过能量色散X射线（EDX）分析，X射线衍射（XRD），扫描电子显微镜（SEM），显微硬度测试仪和圆盘摩擦计对涂层进行表征。实验结果表明，CrAlTiN薄膜的表面形貌致密致密。并且横截面形态表现为纤维状柱状晶体结构。与CrN涂层相比，添加Ti，Al元素后，CrAlTiN薄膜的优先生长方向从CrN（111）变为CrN（200）。当TiAl目标电弧电流为50A时，硬度达到最大值35GPa。 CrAlTiN复合膜在高温下的硬度和耐磨性方面优于二元CrN以及Cr镀层。然后讨论了上述三种涂料在高温下的摩擦学机理。

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