Corrosion stiction at the sliding interface of a brake system was investigated to identify its leading cause and countermeasure. Porosity, acidity, hydrophobicity, strength, contact stiffness, and contact area of commercial brake pads were examined to find the correlation with corrosion stiction. Results showed that the compliant brake pads with low cohesive strength showed high stiction forces owing to the larger contact area after brake applications than stiff pads. Electrochemical analysis of the corroded interface supports the contact area dependency of the stiction force, suggesting that corrosion stiction can be reduced by minimizing the contacts on the brake pad surface.

研究了制动系统滑动界面处的腐蚀静摩擦，以确定其主要原因和对策。检查了商用刹车片的孔隙率、酸度、疏水性、强度、接触刚度和接触面积，以找出与腐蚀静摩擦力的相关性。结果表明，由于制动应用后的接触面积比刚性刹车片大，因此具有低内聚强度的柔顺刹车片显示出高静摩擦力。腐蚀界面的电化学分析支持静摩擦力的接触面积依赖性，表明可以通过最大限度地减少刹车片表面上的接触来减少腐蚀静摩擦。