工艺参数对铝合金化学镀镍层微观形貌的影响  

Effects of Process Parameters on Micromorphology of Electroless Nickel Coating on Aluminum Alloy

作　　者：初立英 王占军 李雪松[2] 

机构地区：[1]吉林航空维修有限责任公司技术工程部,吉林吉林132102 [2]长春工业大学先进结构材料省部共建教育部重点实验室,吉林长春130012

出　　处：《电镀与环保》2013年第6期17-19,共3页Electroplating & Pollution Control

摘　　要：在铝合金表面制备化学镀镍层。利用扫描电子显微镜,讨论工艺参数对合金镀层微观形貌的影响。通过显微硬度计,确定不同合金镀层的显微硬度。结果表明:温度对合金镀层的微观形貌影响较大,在84℃下可获得均匀致密的合金镀层;光亮剂有较好的细化晶粒作用,添加光亮剂后镀层的平整度提高,晶粒更加均匀细致;合金镀层具有较高的显微硬度,最高可达5 620MPa。An electroless nickel coating was prepared on the surface of aluminum alloy.The effects of the process parameters on the micromorphology of the alloy coating were investigated by using scanning electron.The microhardness of the alloy coating was determined with microhardness tester.The results show that temperature has a greater impact on the micromorphology of the alloy coating,an even and compact alloy coating can be obtained at 84 ℃ ; the brightener has a better grain refining effect so that the coating will become smoother and grains will be more uniform and finer when the brightener is added; the alloy coating has a higher microhardness,its maximum can reach 5 620 MPa.

关 键 词：铝合金 化学镀镍 微观形貌 显微硬度 

分 类 号：TQ153[化学工程—电化学工业]