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本试验条件下2Cr13钢离子渗氮层的冲蚀磨损抗力,无论在低冲角或高冲角下都较调质处理有大幅度提高,其原因主要归于离子渗氮层具有高的硬度。表面形貌分析表明,低冲角时以切削磨损为主,高冲角时以形变磨损为主,两种状态表现出明显不同的塑性变形特征。改变冲角仅使表面形貌特征在数量和程度上引起变化,这与冲蚀磨损过程中主要表现的力、能动力学特点相一致。
Under the test conditions, the erosion wear resistance of 2Cr13 steel ion nitriding layer is much higher than that of quenching treatment at low or high angle of attack, which is mainly attributed to the high hardness of ion nitriding layer. Surface morphology analysis showed that cutting wear was the main factor at low angle of attack, and deformation and wear were the main factors at high angle of attack. The two states showed obviously different plastic deformation characteristics. Changing the angle of attack only caused changes in surface topography characteristics in quantity and extent, which was consistent with the main force and kinetic characteristics of erosion process.