Effect of plasma nitriding ion current density on tribological properties of composite CrAlN coatings
Effect of plasma nitriding ion current density on tribological properties of composite CrAlN coatings
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等离子渗氮离子电流密度对CrAlN复合涂层摩擦学性能的影响
DOI：
10.1016/j.ceramint.2021.10.182
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发表时间：
2021-10
影响因子：
5.2
通讯作者：
Hong Lin
中科院分区：
文献类型：
--
作者：
Xin Zhang;Xiubo Tian;Chunzhi Gong;Xiangli Liu;Jin Li;Jingchen Zhu;Hong Lin
采用不同的离子流密度在M2高速钢表面预等离子体氮化制备CrAlN涂层。研究了等离子渗氮预处理对CrAlN复合涂层组织和摩擦学性能的影响。结果表明，提高离子流密度可显著提高渗氮效率。随着离子流密度的增加，渗层厚度从43 μm增加到63 μm。在所有实验离子流密度下均得到无化合物层和晶界析出的氮化层。由于共形效应，复合CrAlN涂层的洛氏C压痕边缘也出现了径向裂纹。复合涂层的径向裂纹起源于硬脆的氮化层。复合涂层的界面结合力最高可达105 N。氮化预处理与涂层沉积相结合可提高CrAlN涂层的耐磨性，其中PN 4/CrAlN复合涂层具有上级耐磨性。
CrAlN coatings were synthesized on pre-plasma nitrided M2 high speed steels using different ion current densities. The effect of plasma nitriding pretreatment on the microstructures and tribological properties of composite CrAlN coatings had been studied. The results showed that the nitriding efficiency could be significantly enhanced by higher ion current density. The thickness of nitrided layer increased from 43 μm to 63 μm with the increase of ion current density. The nitrided layers without either compound layer or grain boundary precipitation were produced with all experimental ion current densities. Radial cracks also appeared at the Rockwell-C indentation edge of the composite CrAlN coating due to the conformal effect. Moreover, radial cracks of the composite coatings originated from the hard and brittle nitrided layer. The highest interfacial adhesion of the composite CrAlN coating reached 105 N. Furthermore, the wear resistance of CrAlN coating was improved by combining nitriding pretreatment with coating deposition, and the composite coating (PN4/CrAlN) possessed the superior wear resistant.
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影响因子：
4.8
作者：
M. Kalin;V. Leskovšek;J. Vižintin
通讯作者：
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影响因子：
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作者：
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DOI：
10.1016/j.ijrmhm.2011.09.010
发表时间：
2012-03-01
影响因子：
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通讯作者：
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影响因子：
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作者：
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影响因子：
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