高强石墨/SA 508 Gr3钢摩擦副的摩擦磨损性能  

Friction and Wear Properties of High Strength Graphite/SA 508 Gr3 Steel Pair

作　　者：王文东[1,2] 史科 薛春[1,2] 周伟 张全成[1,2] 杜鸣杰 周隐玉[1] 

机构地区：[1]上海材料研究所,上海200437 [2]上海市工程材料应用评价重点实验室,上海200437 [3]国核工程有限公司,上海200233

出　　处：《理化检验（物理分册）》2015年第6期426-430,437,共6页Physical Testing and Chemical Analysis(Part A:Physical Testing)

摘　　要：对两种高强石墨与SA 508Gr3钢配对摩擦副的摩擦系数进行了测试,研究了试验载荷、润滑方式以及γ射线辐照对摩擦系数的影响,并用扫描电子显微镜观察了试验后的摩擦表面形貌。结果表明:高强石墨A的干摩擦系数在载荷为490N时最小,载荷为1 470N时最大;在硼酸溶液中,高强石墨A的摩擦系数比干摩擦时的要小;高强石墨A经大剂量γ射线辐照后,其摩擦系数基本不变;高强石墨B的干摩擦系数在载荷为980N时最小,载荷为490N时最大;与石墨对磨时,SA 508Gr3钢表面可形成均匀连续的转移膜,其表面光滑,从而降低了摩擦磨损。The friction coefficients of two kinds of high strength graphite and SA 508 Gr3 steel pairs were measured to study the influences of experimental load, lubrication condition and 3, ray irradiation on the friction coefficients, and the worn surface morphology of the fraction pairs was observed by SEM. The results show that the dry friction coefficient of high strength graphite A was the lowest when the toad was 490 N, and was the highest when the load was 1 470 N. The friction coefficient of high strength graphite A in boric acid solution was lower than the dry friction coefficient. The friction coefficient of high strength graphite A was almost unchanged after y ray irradiation. The dry friction coefficient of high strength graphite B was the lowest when the load was 980 N, and was the highest when the load was 490 N. During the friction, the uniform and continuous transfer film could be formed on the friction surface of SA 508 Gr3 steel to reduce the fraction and wear.

关 键 词：高强石墨 摩擦磨损性能 摩擦系数 载荷 润滑方式 辐照 转移膜 

分 类 号：TQ127.11[化学工程—无机化工] TB302.3[一般工业技术—材料科学与工程]