机械诱导金属表面再生层性能分析
发布时间:2018-01-15 12:00
本文关键词:机械诱导金属表面再生层性能分析 出处:《中国表面工程》2016年06期 论文类型:期刊论文
【摘要】:利用羟基硅酸盐减磨、再生的摩擦学特性,通过机械摩擦磨损诱导金属(45钢)表面生成一层再生层。用扫描电子显微镜表征再生层的厚度,并用能谱分析仪和X射线光电子能谱仪分析再生层的元素组成和化学状态,用维氏硬度仪和洛氏压痕法测试其显微硬度和表层结合力。结果显示:当添加剂羟基硅酸盐质量分数为10.5%时,金属磨损量最小,再生层厚度最大;再生层主要含有C、O、Fe、Cr等4种元素,这些元素以石墨碳和金属氧化物形式存在;对再生层进行力学性能测试,再生层维氏硬度为648.8 HV_(0.3),为基体的1.7倍;表层结合力临界载荷Pc约为150 kg,与基体结合性能好。
[Abstract]:The use of hydroxyl silicate antifriction, tribological properties of regeneration, by mechanical friction and wear induced metal (steel 45) surface to form a layer of regeneration layer. By scanning electron microscopy to characterize the regeneration layer thickness and energy spectrum and X ray photoelectron spectroscopy analysis of regeneration layer of element composition and chemical state, combined with force Vivtorinox hardness tester and Rockwell indentation test and micro hardness of the surface layer. The results show that when the mass fraction of hydroxyl silicate additive is 10.5%, the minimum amount of metal wear, regeneration layer thickness; regeneration layer mainly contains C, O, Fe, Cr and other 4 kinds of elements, these elements exist in the form of graphite carbon and metal oxide; test the mechanical properties of the regeneration layer, regeneration layer Vivtorinox hardness is 648.8 HV_ (0.3), is 1.7 times of the substrate; the surface binding force of critical load of Pc is about 150 kg, with good performance and the matrix.
【作者单位】: 四川大学制造科学与工程学院;
【分类号】:TG174.4
【正文快照】: 0引言 金属磨损是零件失效的三大原因之一,减少零件之间的磨损方法众多,如合理机械结构设计、添加润滑油、利用表面强化技术等[1]。近十多年来,羟基硅酸盐制备的润滑油(脂)实现了金属表面润滑、减磨抗磨,以及表面强化的作用,显现了很好的试验与工业价值2[-5]。 徐滨士、刘家,
本文编号:1428241
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