Comparing tribological behaviors of plasma nitrided and untreated bearing steel under lubrication with phosphor and sulfur-free organotungsten additive

Comparing tribological behaviors of plasma nitrided and untreated bearing steel under lubrication with phosphor and sulfur-free organotungsten additive
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比较等离子氮化和未经处理的轴承钢在使用无磷和无硫有机钨添加剂润滑下的摩擦学行为

DOI:
10.1016/j.triboint.2012.02.021
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发表时间:
2012-07
影响因子:
6.2
通讯作者:
Liu Jiajun
Liu Jiajun
中科院分区:
工程技术1区
文献类型:
--
作者:
Li Xingliang;Yue Wen;Wang Chengbiao;Gao Xiaocheng;Wang Song;Liu Jiajun

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研究了无磷、无硫有机钨润滑添加剂与等离子体渗氮轴承钢表面的相互作用及其协同摩擦学效应。在四球摩擦磨损试验机上考察了其摩擦学性能。用X射线光电子能谱(XPS)分析了摩擦膜的化学特征。结果表明,氮化表面与有机钨添加剂之间具有明显的摩擦学协同效应,其原因是在摩擦膜中形成了WN,有机碳链在摩擦膜中吸附较强,C、W元素含量较高。
The interactions and synergistic tribological effects between plasma nitrided bearing steel surface and phosphor and sulfur-free organotungsten lubricating additive compared with that of untreated steel were investigated in this paper. The tribological behaviors were examined on a four-ball friction and wear tester. The chemical characteristics of the tribofilms were analyzed by X-ray photoelectron spectroscopy (XPS). The results showed that the obvious synergistic effects of better tribological performance between nitrided surface and organotungsten additive were attributed to WN formed in the tribofilm and a stronger adsorption of organic carbon chains and higher contents of C and W element in the tribofilm.
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