电沉积Ni-W合金泡沫的研究  

Research on Electrodeposition of Ni-W Alloy Foams

作　　者：刘素芹[1] 戴高鹏[2] 王启会[1] 

机构地区：[1]湖北襄樊学院化学工程与食品学院,湖北襄樊441053 [2]武汉理工大学材料复合新技术国家重点实验室,湖北武汉430070

出　　处：《金属材料与冶金工程》2009年第2期27-29,34,共4页Metal Materials and Metallurgy Engineering

基　　金：湖北省教育厅项目Q20082507

摘　　要：以聚氨酯泡沫树脂为基体,采用化学镀、电沉积、热解和氢气还原的方法制备出网状结构的Ni-W合金泡沫。对该合金泡沫的形貌、镀液组分与合金组分的关系和合金的抗拉强度、抗腐蚀性、高温抗氧化性进行了分析研究。试验结果表明:合金中W含量随着Na2WO4.2H2O浓度增加而增加,该合金泡沫骨架平整,Ni-W合金泡沫抗拉强度、耐腐蚀性和高温抗氧化性优于镍泡沫,在中性盐雾试验中的抗腐蚀性加强,高温抗氧化性也增强。Reticulated Ni- W foams were prepared through polyurethane as framework by four step method consisting of coating electrolysis, electrodeposition, pyrogenation and hydrogen reducing. The morphology, relationship between compositions of bath and compositions of deposits, tensile strength, salt spraycorrosion and antioxidation of alloy foams in high temperature were investigated. The result s show that, W content in alloy foams increases with the increasing of concentration of Na2WO4 · 2H2O, Ni- W foams have excellent properties such as even struts, high tensile strength, good salt spray corrosion resistance and good oxidation resistance, in salt spray corrosion experiments anticorrosion and antioxidation in high temperature were improved with the increasing of W content.

关 键 词：Ni-W合金泡沫 电沉积 抗拉强度 抗腐蚀 高温抗氧化 

分 类 号：TF803.12[冶金工程—有色金属冶金]