摘要
运用正交设计研究影响电沉积铁-镍-铬合金箔质量的主要工艺因素,分析电流密度、溶液温度和溶液的pH值等各因素对合金成分和电流效率的影响,通过综合评分的方法确定最佳工艺条件,并对最佳工艺条件下获得的合金箔材的微观形貌、结构、物理和化学性能进行研究。研究结果表明制备的合金箔材成分为60%～65%Fe,34%～36%Ni,1%～2%Cr,厚度均匀,表面光滑,结晶细致。扫描电镜观察和X衍射结果表明其晶粒尺寸在纳米范围内,合金箔的抗拉强度和延展率分别为658MPa和6%以上,电阻率超过90μΩ.cm,磁感应强度为1.25T,最大导磁率为1.096×10-2H.m-1,矫顽力为357.53A.m-1;箔材具有优异的耐腐蚀性能。
The technology of the electrodeposition nanocrystalline Fe-Ni-Cr alloy foil from sulfatechrolide solution was studied by orthogonal design. The effects of operating parameters such as current density, temperature and pH of solution, on Fe-Ni-Cr alloy foil were discussed by synthetical graded approach. The best process for Fe-Ni-Cr alloy foil was obtained through synthetic analysis. The results from scanning electron micrograph （SEM） and X-ray diffraction （XRD） show that Fe-Ni-Cr alloy foil possesses a smooth and clean appearance, uniform thickness and stable composition of 60 %- 65% Fe, 34% - 36% Ni and 11% - 2% Cr, and the grain size of alloy is less than 100 nm, which indicates it is nanocrystalline. The nanocrystalline alloy foil also exhibits better mechanical, electromagnetic performance and better corrosion resistance.
出处
《中南大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2005年第6期938-943,共6页
Journal of Central South University:Science and Technology
基金
国家自然科学基金资助项目(59674025)
关键词
电沉积
纳米晶
铁-镍-铬合金箔
正交设计
electrodeposition
nanocrystalline
Fe-Ni-Cr alloy foil
orthogonal design
