含铁低镍白色金合金镍渗出及抗变色性能  

Anti-tarnish and Nickel release of low nickle white gold alloy with Fe addition

作　　者：向雄志[1] 白晓军[1] 姚勇刚 陈澎旭 

机构地区：[1]深圳大学材料学院深圳市特种功能材料重点实验室,深圳518060 [2]中山市嘉瑞特贵金属材料有限公司,广东省中山市528429

出　　处：《深圳大学学报（理工版）》2010年第2期142-146,共5页Journal of Shenzhen University(Science and Engineering)

基　　金：深圳市科技计划资助项目(CXB200903090012A);深圳市特种功能材料重点实验室开放基金资助项目(T0908)

摘　　要：研究Fe元素部分取代镍对白色金合金镍渗出以及抗变色性能影响.指出当Fe等元素取代合金中的部分Ni元素后,由于镍含量降低,合金的镍释放率出现下降,镍降低导致表面镍钝化膜的破坏.当镍质量分数低于2.5%时,合金的镍释放量反而升高.Fe对合金的漂白效果弱于镍,Fe的加入会导致合金抗变色性能降低.均匀化退火热处理对该实验系列金合金材料的抗变色性能影响不大,但可减少合金成分的偏析,有效降低合金的镍渗出量.Effect of iron on the Nickel release and anti-tarnish properties of white gold alloy with Nickel partly replaced by Iron in different ratios was investigated. Low nickel ratio leads to the Nickel release dropping when Nickel is partly replaced by Iron. While the nickel ratio dropped below 2.5 % , the nickel release ratio rose because of the bankrupt of the nickel passive film. Iron has weak bleaching effect than nickel has. Iron also weakens the anti-tarnish property of gold alloys. Homogenizing annealing does not contribute to the anti-tarnish properties of gold alloy. Nickel release reduces after annealing due to the elimination of alloy segregation.

关 键 词：白色金合金 镍渗出 抗变色 合金铸造 首饰材料 皮肤过敏 

分 类 号：TG27[金属学及工艺—铸造]