Partial slip fretting corrosion of Alloy 690TT comes up in the steam generator of a nuclear power plant, in which the damage mechanisms are transformed as dissolved oxygen (DO) varies. In this work, the coupling between the action of oxide particles sticking into the surface and the electrochemical corrosion caused severe pitting-like damage, which was enhanced by an increase in DO concentration increasing the wear volume. The initiation of fatigue cracking was controlled by the slip dissolution along with the competition between the film rupture rate and the repassivation rate as DO changes.

中文翻译：

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高温纯水中溶解氧对690TT合金局部滑移微动腐蚀的影响

690TT合金的部分滑移微动腐蚀发生在核电站的蒸汽发生器中，其腐蚀机理随着溶解氧（DO）的变化而改变。在这项工作中，氧化物颗粒粘在表面的作用与电化学腐蚀之间的耦合导致了严重的点蚀状损伤，这可通过增加DO浓度和增加磨损量来增强。疲劳裂纹的萌生是由滑移溶解以及随DO的变化而引起的膜破裂率和再钝化率之间的竞争所控制的。