Abstract The evolution of fretting wear with the number of cycles for Inconel 690 steam generator tubes against AISI 420 pads in air at room temperature was studied in a 90° cross-cylinder configuration. Tests were performed under a contact load of 10 N and a displacement amplitude of 50 μm to a total number of cycles between 102 and 106. Fretting wear associated with gross slip was identified as the main damage mechanism. The maximum wear depth was a better descriptor of wear evolution than the Archard defined wear coefficients due to the lack of linearity between wear volume and number of cycles. Debris detached at 106 cycles consist of agglomerates of 5 - 20 nm sized nanoparticles with chemical composition (Ni, Fe)(Fe, Cr)2O4.

中文翻译：

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在总滑动条件下，Inconel 690 蒸汽发生器管与 AISI 420 钢的微动磨损随循环次数的演变

摘要 在 90° 交叉气缸配置中，研究了 Inconel 690 蒸汽发生器管在室温空气中相对于 AISI 420 垫的微动磨损随循环次数的演变。测试在 10 N 的接触载荷和 50 μm 的位移幅度下进行，循环总数在 102 到 106 之间。与总滑动相关的微动磨损被确定为主要的损坏机制。由于磨损量和循环次数之间缺乏线性，最大磨损深度是比 Archard 定义的磨损系数更好的磨损演变描述。在 106 次循环时分离的碎片由 5 - 20 nm 大小的纳米颗粒的团聚体组成，其化学成分为 (Ni, Fe)(Fe, Cr)2O4。