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对7A52铝合金及45钢表面活性屏离子渗硫层的制备及形貌结构进行了研究。通过工装使7A52铝合金及45钢试样在高频脉冲等离子扩渗炉中处于零电位,并置于接阴极的不锈钢网状活性屏中。在离子渗硫过程中,利用不锈钢网状活性屏上形成的硫化物溅射下来,沉积到7A52铝合金及45钢试样表面,从而形成离子渗硫层。SEM、EDS及XRD检测分析结果表明,活性屏离子渗硫技术不仅可以获得传统离子渗硫技术一样的处理效果,而且还细化了硫化物颗粒尺寸,较好地解决了传统离子渗硫技术出现的边缘效应、工件打弧和空心阴极效应等问题。活性屏离子渗硫技术不仅可在钢铁材料上制备离子渗硫层,还可在非钢铁材料上制备离子渗硫层,为解决非钢铁材料的减摩耐磨问题提供了一条新的途径。
The preparation and morphological structure of 7A52 aluminum alloy and 45 steel surface active ion-permeable layer were studied. Through the tooling 7A52 aluminum alloy and 45 steel samples in the high-frequency pulsed plasma expansion furnace at zero potential, and placed in the cathode connected to the stainless steel mesh active screen. In the process of ionizing sulfur, the sulfide layer formed on the stainless steel mesh active screen was sputtered and deposited on the surface of 7A52 aluminum alloy and 45 steel sample to form the ion-permeable layer. The results of SEM, EDS and XRD show that the active screen plasma desulfurization technology can not only get the same treatment effect as the traditional ion sulfurization technology, but also refine the sulfide particle size and solve the problem of traditional ion sulfurization technology The edge effect, the workpiece arc and hollow cathode effect and other issues. The active screen ion desulfurization technology can not only prepare the ion-permeable layer on the steel material, but also prepare the ion-permeable layer on the non-steel material, which provides a new way to solve the problem of anti-friction and wear resistance of non-steel materials.