【作者】 刘谦； 徐滨士； 许一； 史佩京； 于鹤龙；

【Author】 LIU Qian;XU Bin-shi;XU Yi;SHI Pei-jing;YU He-long National Key Laboratory for Remanufacturing, Academy of Armored Force Engineering, Bejing 100072, China

【机构】 装甲兵工程学院装备再制造技术国防科技重点实验室；

【摘要】 利用T-11摩擦磨损试验机进行了纳米铜自修复添加剂摩擦磨损试验,利用光学显微镜和扫描电镜对摩擦表面进行了形貌观察,利用能谱仪进行了磨痕表面元素分析。结果表明磨痕表面形成了富含铜元素的修复膜,静止上试样的磨痕表面比运动的下试样表面形成的薄膜厚,在摩擦表面有原始微损伤(磨削沟槽)的部位边缘有不连续的铜膜沉积。分析认为摩擦使得表面金属活化,不断产生新鲜金属表面,有利于自修复添加剂中的纳米铜与金属结合形成表面膜,对磨损表面起到自修复作用。更多还原

【Abstract】 The wear test was carried out on a T-11 ball-on-plate frictionand wear tester made in Poland. The morphologies of the wornsurfaces of the samples were observed on optical microscope andscanning electron microscope, while the elemental distributionson the worn surfaces were determined by means of electron micro-probe analysis. As the results, a film mainly made of Cu was formed on the worn surface. The film on the surface of the stillupper sample was thicker than the film formed on the revolvingcounterpart. At the edge of the groove of the worn surface madeby the milling before test there was Cu element observed obvious-ly. A possible action mechanism of the film was suggested. Thefriction movement could induce reactivity of the metal and contin-uously produced activation surface. It benefited the film formedby nano-Cu in lubricant on the worn surface. The nanometer cop-per membrane formed on wear surface play the part of self-repair.更多还原