热处理对Ni-W-P合金镀层结构和性能的影响  

Effects of Annealing Temperature on the Crystal Structure and Properties of Jet Electrodeposition Ni-W-P Alloy Coatings

作　　者：王跃华[1] 于金库[1,2] 邢广忠[1,2] 游菲[1] 李彩苓 乔琪[1,2] 赵研[1] 肖泽泽 李窘[3] 

机构地区：[1]燕山大学,材料科学与工程学院,秦皇岛066004 [2]燕山大学,亚稳材料制备技术与科学国家重点实验室,秦皇岛066004 [3]北京北冶功能材料有限公司,北京100192

出　　处：《金属材料研究》2015年第2期1-5,共5页Research on Metallic Materials

基　　金：燕山大学亚稳态材料制备技术与科学国家重点实验室资助

摘　　要：用喷射电沉积方法制备出Ni—W-P合金镀层。研究了热处理温度对纯铜基体镀层晶体结构、显微硬度和耐蚀性的影响。实验结果显示，镀层的晶体结构和性能随热处理温度的增加而变化。镀态合金镀层呈非晶态，在370℃时镀层开始晶化，在400℃时Ni3P相完全形成且Ni-W相开始形成。测定了在不同热处理温度时镀层的显微硬度和耐蚀性，结果显示热处理后合金镀层具有很高的硬度，耐蚀性随热处理温度的增加逐渐减小。研究了喷射电沉积合金镀层的强化机制。Ni-W-P alloy coatings were prepared by Jet electrodeposition method. The effects of the annealing temperature on the crystal structure, microhardness, and corrosion resistance of Ni-W-P alloy coatings were studied. The experimental results show that the crystal structure and properties of Ni-W-P alloy coatings change with the increase of annealing temperature. That is, as-deposited Ni-W-P alloy coatings possess amorphous structure, which gradually begin to crystallize at 370℃, Ni3P phase is completely formed and NiW phases begin to form at 400℃. The microhardness and corrosion resistance of the alloy coatings annealed at different temperatures were also measured. The results show that the Ni-W-P alloy coatings annealed exhibit higher microhardness, and corrosion resistance of these Ni-W-P alloy coatings gradually reduces with the increase of annealing temperature. The possible strengthening mechanisms of the Jet electrodeposition Ni-W-P alloy coatings were discussed.

关 键 词：喷射电沉积 Ni—W—P合金镀层 热处理温度 晶体结构 显微硬度 耐蚀性 

分 类 号：TQ153.2[化学工程—电化学工业]