Transition from mixed stick-slip to gross-slip regime of advanced materials namely Zircaloy-4/Inconel-600, Ti-6Al-4V/Inconel-600, and 9Cr-1Mo-steel/Ti-6Al-4V are explored. A wear map shows the influence of normal load and sliding amplitude on transition time. Extensive characterizations of worn surfaces captured the sequential changes of contact state (stick/slip) and associated chemical changes (material transfer and oxidation). Low cycle fatigue failure of plate creates deep inclined surface cracks (primary) and shallow subsurface cracks (secondary). Secondary crack breaks the adhesive junctions, transfers plate material to pin, and moves stick-slip boundary by unit distance towards the center of contact. Successive failures of plate with increasing time cause transition of regimes. Slight change of coefficient of friction and extensive wear debris are the external manifestations of transition.

探索了从混合粘滑过渡到高级材料的粗滑状态，即 Zircaloy-4/Inconel-600、Ti-6Al-4V/Inconel-600 和 9Cr-1Mo-steel/Ti-6Al-4V。磨损图显示了法向载荷和滑动幅度对过渡时间的影响。磨损表面的广泛表征捕获了接触状态（粘/滑）和相关化学变化（材料转移和氧化）的连续变化。板的低周疲劳失效会产生深的倾斜表面裂纹（主要）和浅的亚表面裂纹（次要）。二次裂纹破坏粘合连接，将板材转移到销钉，并将粘滑边界向接触中心移动单位距离。随着时间的增加，板块的连续失效会导致制度的转变。