工程科学学报2017，Vol.39Issue(11)：1699-1708,10.DOI:10.13374/j.issn2095--9389.2017.11.013
不同环境温度下典型身管用钢磨损性能研究
Effect of ambient temperature on the wear performance of typical gun barrel steels
摘要
Abstract
The wear and wear mechanisms of two typical gun barrel steels at room temperature,200,400,and 600℃ were inves-tigated by wear,high-temperature hardness,and other types of tests. It was found that the friction coefficients of the two typical gun barrel steels varied little with temperature owing to the formation of triboxides. The wear rate of 32Cr2MoVA first decreased,then in-creased,and finally decreased with increasing temperature,whereas the wear rate of 30SiMn2MoVA first decreased and then increased with increasing temperature,reaching its maximum at 600℃. The triboxides on the wear surface depended on the temperature, the hardness of the gun barrel steel,and the difference between disc and pin hardness (Hd--Hp) at high temperatures. The temperature-dependent wear of both gun barrel steels depends on the triboxides up to 200℃. Adhesive wear prevailed with simultaneous abrasive wear at room temperature,whereas mild oxidative wear was dominant at 200℃ in both steels. The wear depends on the hardness of the gun barrel steels and disc at 400℃. Severe oxidative wear was dominant at 400℃ in both steels. At 600℃,thick and compact tribox-ides formed at the wear surface of 32Cr2MoVA owing to the decreasing Hd--Hp; consequently, mild oxidative wear became the domi-nant mechanism. For 30SiMn2MoVA,the extrusion of pin material,which is attributed to the abrupt increase in Hd--Hp,suggests that extrusion wear prevailed.关键词
身管用钢/磨损/温度/摩擦氧化层/基体Key words
gun barrel steel/wear/temperature/triboxides/matrix分类
军事科技引用本文复制引用
高文,张津,连勇,黄进峰,解国良,张乐,马旻昱,赵超,张尊君,刘凯..不同环境温度下典型身管用钢磨损性能研究[J].工程科学学报,2017,39(11):1699-1708,10.基金项目
北京市腐蚀、磨蚀与表面技术重点实验室和北京市教委共建资助项目(SYS100080419) （SYS100080419）
