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中文摘要：
利用电刷镀技术制备了纳米Al2O3/Ni复合镀层,研究了镀层与GCr15摩擦副从室温到500℃的微动磨损特性,并采用扫描电子显微镜观察了磨痕微观形貌。结果表明:镀层的微动运行区域包括部分滑移区、混合区和滑移区;在微动初期迅速增大的摩擦因数在稳定阶段有所降低;随着试验温度的上升,摩擦因数显著降低,但当试验温度为500℃时,摩擦因数又有所上升;复合电刷镀层的显微硬度随温度升高而显著下降,导致其抗磨损性能降低。复合电刷镀层在室温下的微动损伤主要表现为剥层,而在200℃以上时主要表现为剥层和粘着。
英文摘要：
n-Al2O3/Ni composite coatings were prepared on 30CrMnSi steel substrate by electro-brush plating,using a nickel brush plating electrolyte containing n-Al2O3 particles(about 30 nm) of 20 g·L-1.Fretting wear behavior of the coatings against GCr15 under the dry sliding condition up to 500 ℃ was investigated on a PLINT test rig.Fretting wear mechanism of the coatings was discussed,based on the morphological observation of the worn surface with scanning electron microscopy.Results show that the fretting regimes ...
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Effect of heat treatment on contact fatigue properties of n-SiO2/Ni composite coating prepared by el
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