中南大学学报（自然科学版）2018，Vol.49Issue(5)：1087-1094,8.DOI:10.11817/j.issn.1672-7207.2018.05.009
中重型车辆离合器摩擦副材料的高温摩擦磨损性能
Friction and wear properties for clutch friction materials in medium-heavy-duty vehicle at high temperature
摘要
Abstract
In order to study the friction and wear mechanisms of the clutch friction pair at high temperature, 30CrSiMoVM steel was selected as the dual-steel-disk pairing with the copper based powder metallurgy frictional material, and its friction and wear properties were investigated at the temperatures from room temperature to 600 ℃, through a high temperature wear tester (MMU-10G type). The results show that with the increase of temperature, the strength of friction pair materials decrease gradually and the oxide film coatings are constantly formed and peeled on the contact surface, leading to a gradual increase at the friction coefficient and wear loss of the friction pair. At 300-500 ℃, the friction coefficient and wear loss of the friction pair increase steadily, indicating that the friction and wear properties are stable, and the predominant wear mechanisms are abrasive wear, oxidative wear and fatigue wear. At 600 ℃, the material surface is softened, resulting in a rapid increase at the friction coefficient of friction pair and wear loss of the frictional material. Severe adhesive wears occur on the dual-steel-disk surface, but its relative wear loss remains low, and the dominant wear mechanisms are adhesive wear, oxidative wear and fatigue wear.关键词
30CrSiMoVM钢/铜基粉末冶金/高温/摩擦磨损性能Key words
30CrSiMoVM steel/copper based powder metallurgy/high temperature/friction and wear properties分类
机械制造引用本文复制引用
屈盛官,袁志敏,赖福强,李小强,付志强..中重型车辆离合器摩擦副材料的高温摩擦磨损性能[J].中南大学学报（自然科学版）,2018,49(5):1087-1094,8.基金项目
国家自然科学基金资助项目(41572362) （41572362）
广东省科技装备动员资助项目(2016KZ010104)(Project(41572362)supported by the National Natural Science Foundation of China （2016KZ010104）
Project(2016KZ010104)supported by the Scientific and Technological Projects of Guangdong Province) （2016KZ010104）
