中文摘要：

钢丝绳中钢丝的锈蚀、磨损或断裂是造成矿井用钢丝绳失效的主要形式.以6×19点接触式提升钢丝绳为研究对象,在自制的微动摩擦磨损试验机上开展钢丝在腐蚀介质环境下的微动磨损试验研究.考察钢丝在模拟矿井淋水腐蚀介质中的微动运行特性,通过磨痕测量微动磨损量,采用光学显微镜、扫描电镜和能谱仪对钢丝的微动损伤机理进行分析.结果表明：腐蚀介质影响钢丝的微动运行区域,在干摩擦和中性腐蚀介质下运行于混合区,而在酸性和碱性腐蚀介质下运行于滑移区;腐蚀介质明显降低钢丝的摩擦系数,其中酸性介质下的摩擦系数最小,约为0.36;腐蚀与磨损的交互作用显著加速了材料的流失,酸性腐蚀介质下钢丝的磨痕深度最大;钢丝在干摩擦条件下的损伤机制以材料的塑性变形、粘附涂抹和摩擦氧化为主,而在腐蚀介质环境下的损伤机制转变为磨粒磨损和化学腐蚀.

英文摘要：

The main failure modes of steel wires as hoisting ropes used in coal mine were rust,wear and break of steel wires.The fretting wear tests of steel wires as hoisting ropes in corrosive media were conducted on a self-made fretting wear test rig using the 6×19 point contact rope as speciemen.The fretting behaviors of steel wires under dry condition and three media（the main component was trickling water in mine） were reviewed.The fretting wear losses were caculated and damage mechanisms of steel wires were analyzed by using optical microscopy（OM）,scanning electron microscopy（SEM） with energy dispersive spectroscopy（EDS）.The results showed that corrosive media had impact on the fretting regime,i.e.mixed fretting regime in air and neutral corrosive media while slip fretting regime in acid and alkaline corrosive media.The friction coefficients were reduced significantly due to the lubrication of corrosive media and the lowest was about 0.39 in acid corrosive media.Interaction between corrosion and wear accelerated the loss of material,and wear depth in acid corrosive media was the highest.The main fretting damage mechanisms of steel wires were the combination of plastic deformation,adhesion and smear,and tribo-oxidation under dry condition.Abrasive wear and corrosion were the main fretting damage mechanisms in corrosive media.