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离子注入表面改性是近期迅速兴起的一门新型表面技术.通过离子注入可以改变基体表面的机械性能和其它性能.GCr15钢是常用的航空轴承用钢.利用硼离子注入GCr15钢来探讨该钢表层的耐磨性和耐蚀性.试验所用GCr15钢的主要合金成分为0.98％C、1.50％Cr.试样制备之前先进行淬回火处理,然后经过粗磨、细磨、抛光、酒精擦拭后进行硼离子注入.离子注入能量80KeV,剂量为5×10~(16)～5×10~(17)B~+·cm~(-2). 对GCr15钢硼离子注入表层的硬度、耐磨性、耐蚀性的测试表明,GCr15钢表层的显微硬度随注入剂量的增加而明显提高,最大的提高量可达56％;表层的耐磨性由于硼离子注入而显著增加,以磨损失重量对比,离子注入最大可使其下降2倍,磨损类型亦由粘着靡损向较轻
Ion implantation surface modification is a recent rapid rise of a new surface technology through the ion implantation can change the mechanical properties of the substrate surface and other properties.GCr15 steel is commonly used aviation bearing steel.Brion ion implantation GCr15 steel to explore the steel The surface of the wear resistance and corrosion resistance GCr15 steel used in the test the main alloy composition 0.98% C, 1.50% Cr. Sample preparation before quenching and tempering, and then coarse grinding, fine grinding, polishing, alcohol wiping Ion implantation energy 80KeV, the dose of 5 × 10 ~ (16) ~ 5 × 10 ~ (17) B ~ + · cm -2. GCr15 steel boron ion implantation surface hardness, resistance The results of wear resistance and corrosion resistance show that the microhardness of GCr15 steel surface obviously increases with the increase of injection dosage, the maximum increase is up to 56%. The wear resistance of surface layer increases remarkably due to boron ion implantation, Loss of weight comparison, the maximum ion implantation can make it down 2 times, the type of wear and tear also by the adhesion loss to lighter