紫铜表面镍-铁合金镀层的织构及性能  

Texture and Properties of Ni-Fe Alloy Coatings on Red Copper

作　　者：王志义[1] 刘向秀 WANG Zhiyi;LIU Xiangxiu(Cangzhou Technical College,Cangzhou 061000,China)

机构地区：[1]沧州职业技术学院

出　　处：《电镀与环保》2019年第6期20-23,共4页Electroplating & Pollution Control

基　　金：河北省科技厅2017年科技计划项目(项目编号:16211413)

摘　　要：向瓦特型镀镍液中添加硫酸亚铁并改变铁、镍离子的质量浓度比,在紫铜表面制备了铁的质量分数不同的镍-铁合金镀层,相应地命名为镍-14.52%铁合金镀层、镍-22.18%铁合金镀层、镍-30.70%铁合金镀层、镍-42.73%铁合金镀层。比较了四种镍-铁合金镀层的织构和性能。结果表明:铁的质量分数是影响镍-铁合金镀层的织构、热膨胀性、显微硬度和抗拉强度的重要因素;镍-30.70%铁合金镀层具有较高的显微硬度和抗拉强度;镍-42.73%铁合金镀层具有较小的平均线膨胀系数。Ni-Fe alloy coatings with different mass fraction of Fe were prepared on red copper in Watt’s nickel bath containing ferrous sulfate by changing the mass concentration ratio of Fe2+ to Ni2+, which were named as Ni-14.52%Fe alloy coating, Ni-22.18%Fe alloy coating, Ni-30.70%Fe alloy coating and Ni-42.73%Fe alloy coating, respectively. The texture and properties of four Ni-Fe alloy coatings were compared. The results showed that the mass fraction of Fe was an important factor affecting the texture, thermal expansibility, microhardness and tensile strength of Ni-Fe alloy coating. Ni-30.70%Fe alloy coating has higher microhardness and tensile strength, and Ni-42.73%Fe alloy coating has lower average linear expansion coefficient.

关 键 词：镍-铁合金镀层 铁的质量分数 铁、镍离子的质量浓度比 热膨胀性 显微硬度 抗拉强度 

分 类 号：TQ153[化学工程—电化学工业]