Process for phosphate-permanganate conversion coating of Mg alloy

被引：0
|
作者：
Zhao, Ming [1 ]
Wu, Shusen [1 ]
Luo, Jirong [1 ]
Li, Dongnan [1 ]
机构：
[1] Huazhong University of Science and Technology, Wuhan 430074, China
来源：
Tezhong Zhuzao Ji Youse Hejin/Special Casting and Nonferrous Alloys | 2005年 / 25卷 / 06期
关键词：
D O I：
暂无
中图分类号：
学科分类号：
摘要：
An orthogonal design with four factors and three levels for phosphate-permanganate conversion coating of Mg alloy was performed based on the composition of Phosphate-permanganate conversion solution consisting of KMnO4, K2HPO4, H3PO4 (adjusting pH values). It was found that the H3PO4 (pH value) is dominant in micro-conversion solution, next to K2HPO4 and KMnO4, through analyzing thickness of the conversion film and thickness adhesion. And the optimized factors was obtained, so the optimization composition proportion of the phosphate-permanganate and its process were given. The experimental results showed that the corrosion resistance is equivalent to that of conversion coating in DOW1 solution.
引用
收藏
页码：328 / 329
相关论文
共 50 条
  • [41] Surface characteristics of chemical conversion coating for Mg-Al alloy
    Masazumi OKIDO
    Ryoichi ICHINO
    Seong-Jong KIM
    Seok-Ki JANG
    Transactions of Nonferrous Metals Society of China, 2009, 19 (04) : 892 - 897
  • [42] A novel phosphate conversion film on Mg-8.8Li alloy
    Song, Yingwei
    Shan, Dayong
    Chen, Rongshi
    Zhang, Fan
    Han, En-Hou
    SURFACE & COATINGS TECHNOLOGY, 2009, 203 (09): : 1107 - 1113
  • [43] Corrosion resistance and electrical contact resistance of a thin permanganate conversion coating on dual-phase LZ91 Mg-Li alloy
    Hung, Sung-Mao
    Lin, Han
    Chen, Huan-Wen
    Chen, Siao-Ying
    Lin, Chao-Sung
    JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T, 2021, 11 : 1953 - 1968
  • [44] Mg substituted apatite coating from alkali conversion of acidic calcium phosphate
    da Rocha, Daniel Navarro
    de Oliveira Cruz, Leila Rosa
    de Campos, Jose Brant
    Santana Blazutti Marcal, Rubens L.
    Mijares, Dindo Q.
    Coelho, Paulo G.
    da Silva, Marcelo H. Prado
    MATERIALS SCIENCE AND ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS, 2017, 70 : 408 - 417
  • [45] Duplex-layered manganese phosphate conversion coating on AZ31 Mg alloy and its initial formation mechanism
    Cui, Xue-jun
    Liu, Chun-hai
    Yang, Rui-song
    Fu, Qing-shan
    Lin, Xiu-zhou
    Gong, Min
    CORROSION SCIENCE, 2013, 76 : 474 - 485
  • [46] Performance of corrosion protection of carbon steel with cerium modified phosphate-permanganate coatings and a layer of silane doped with cerium
    Girciene, O.
    Gudaviciute, L.
    Martusiene, A.
    Jasulaitiene, V.
    Selskiene, A.
    Ramanauskas, R.
    CHEMIJA, 2019, 30 (03): : 127 - 135
  • [47] Effect of cerium ion on the microstructure and properties of permanganate conversion coating on LZ91 magnesium alloy
    Jian, Shun-Yi
    Chang, Ko-Lun
    APPLIED SURFACE SCIENCE, 2020, 509
  • [48] Molybdate/phosphate composite conversion coating on magnesium alloy surface for corrosion protection
    Yong, Zhiyi
    Zhu, Jin
    Qiu, Cheng
    Liu, Yali
    APPLIED SURFACE SCIENCE, 2008, 255 (05) : 1672 - 1680
  • [49] Formation mechanism and properties of fluoride-phosphate conversion coating on titanium alloy
    Wang, Shuaixing
    Liu, Xiaohui
    Wang, Liqiang
    Wen, Qingjie
    Du, Nan
    Huang, Jianhang
    RSC ADVANCES, 2017, 7 (26) : 16078 - 16086
  • [50] An investigation of the effect of a magnetic field on the phosphate conversion coating formed on magnesium alloy
    Zhao, Ming
    Li, Jianguo
    He, Guangping
    Xie, Honglan
    Fu, Yanan
    APPLIED SURFACE SCIENCE, 2013, 282 : 499 - 505
12345