Abstract

In this paper, we present the study results of the surface layers of carbon steels U8 and U10 performed by X-ray photoelectron spectroscopy after laser exposure. The thicknesses of oxidized surface layers were determined to be 43 nm and 108 nm for U8 and U10 steels, respectively. Both the total thickness of the formed oxide film and its phase composition (FeO, Fe₂O₃, Fe₃O₄) with depth were found to change depending on the concentration of iron, oxygen, and carbon atoms in the considered steels. The “layer” structure effect of the oxides of the layer modified by laser irradiation on the frictional characteristics of steels is shown. In particular, the presence of FeO oxide on the U8 steel surface increases the wear characteristics, while the presence of Fe₂O₃ and Fe₃O₄ oxides provides a higher wear resistance of steel U10 compared to an unirradiated steel surface.

中文翻译：

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工具钢的激光辐射表面改性特性

摘要

在本文中，我们介绍了碳钢U8和U10的表面层在激光曝光后通过X射线光电子能谱进行的研究结果。对于U8和U10钢，氧化表面层的厚度分别确定为43 nm和108 nm。形成的氧化膜的总厚度及其相组成（FeO，Fe ₂ O ₃，Fe ₃ O ₄深度）随着所考虑的钢中铁，氧和碳原子浓度的变化而变化。示出了通过激光辐照改性的层的氧化物对钢的摩擦特性的“层”结构效应。特别地，在U8钢表面上存在FeO氧化物增加了磨损特性，而与未辐照钢表面相比，Fe ₂ O ₃和Fe ₃ O ₄氧化物的存在提供了钢U10更高的耐磨性。