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首页> 外文期刊>Journal of Materials Engineering and Performance >Structure and Friction-Reducing Property of the Sulfide Layer Produced by Ion Sulfuration
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Structure and Friction-Reducing Property of the Sulfide Layer Produced by Ion Sulfuration

机译：离子硫化产生的硫化物层的结构和减摩性能

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摘要

Sulfide layers with a certain thickness were made on the surface of 1045 and 52100 steels by means of the low-temperature ion sulfuration technique. Metallography, scanning electron microscope (SEM) + energy-dispersive x-ray analysis (EDX), and x-ray diffraction (XRD) were adopted to analyze the structure of sulfide layers; the tribological properties of the layers lubricated by paraffin oil were also investigated on a reciprocating tester. The results showed that sulfide layer is porous, and its structure is mainly composed of FeS, FeS_2, and substrate phases. The sulfide layer possessed a remarkable friction-reducing effect; its friction coefficient was lower on average, by about 50 %, than that of the surface without layer. With the increase of layer thickness, its friction coefficient was unchanged, and under low load conditions, its operational period was prolonged. Under the same experimental conditions, the operational period of sulfide layer on 52100 steel was longer than that on 1045 steel, and its friction coefficient was lower as well.
机译：利用低温离子硫化技术在1045和52100钢的表面上形成一定厚度的硫化物层。采用金相学，扫描电子显微镜（SEM）+能量色散X射线分析（EDX）和X射线衍射（XRD）分析硫化物层的结构;还用往复式试验机研究了石蜡油润滑层的摩擦学性能。结果表明，硫化物层是多孔的，其结构主要由FeS，FeS_2和基质相组成。硫化层具有显着的减摩作用;其摩擦系数平均比无层表面低约50％。随着层厚度的增加，其摩擦系数不变，在低负荷条件下，其工作时间延长。在相同的实验条件下，52100钢的硫化物层的工作时间比1045钢的要长，其摩擦系数也较低。

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