采用非平衡磁控溅射法在硬度分别为56HRC和62HRC的Cr12MoV冷作模具钢表面制备Cr/CrN/CrTiAlN涂层,综合分析了涂层的表面性能,并进行了应用试验.实验结果和应用试验表明:Cr/CrN/CrTiAlN涂层能显著提高Cr12MoV 钢基体的表面硬度(2550HV25)及承载能力, 并与基体较好地结合,从而显著减少了Cr12MoV 钢基体的磨粒磨损,耐磨性提高,对于高的基体硬度这一效果更为明显.经Cr/CrN/CrTiAlN涂层的翻边精整冷冲模,较未表面处理模具其使用寿命提高了两个数量级以上.
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