椎间盘表面形貌对等硬度钢副干式微动磨损的影响。

The Effect of Disc Surface Topography on the Dry Gross Fretting Wear of an Equal-Hardness Steel Pair.

作者信息

Lenart Agnieszka, Pawlus Pawel, Dzierwa Andrzej

机构信息

EME Aero, Jasionka 954, 36-002 Jasionka, Poland.

Faculty of Mechanical Engineering and Aeronautics, Rzeszow University of Technology, Powstancow Warszawy 8 Street, 35-959 Rzeszow, Poland.

出版信息

Materials (Basel). 2019 Oct 4;12(19):3250. doi: 10.3390/ma12193250.

DOI:10.3390/ma12193250

PMID:31590331

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6804213/

Abstract

Experimental investigations were carried out with an Optimol SRV5 tribological tester in a flat-on-sphere scheme. The balls co-acted with the discs in a gross sliding fretting regime. The balls and discs were made from the same steel with a very similar hardness. Tests were conducted at 25-35% relative humidity, 30 °C, and a constant normal load and number of cycles (18,000). The discs had different textures after various machining treatments. It was found that the total wear level of the tribological assembly was proportional to the disc surface amplitude. The influence of the disc roughness on the coefficient of friction was evident only for the smallest stroke of 0.1 mm, and the frequency of oscillation affected this dependency.

摘要

采用Optimol SRV5摩擦磨损试验机，在平面-球面配置下进行了实验研究。在大滑动微动磨损工况下，球与盘相互作用。球和盘由具有非常相似硬度的同一种钢制成。试验在相对湿度25%-35%、30℃、恒定法向载荷和循环次数（18000次）的条件下进行。经过各种加工处理后，盘具有不同的纹理。结果发现，摩擦副的总磨损程度与盘表面幅值成正比。仅在最小行程为0.1mm时，盘粗糙度对摩擦系数的影响才明显，且振荡频率影响这种相关性。