Chromate and Chromate–Phosphate Conversion Coatings on Aluminium

被引：0
|
作者：
M. Oki
T. K. Oki
E. Charles
机构：
[1] National Open University of Nigeria,School of Science and Technology
[2] University of Port Harcourt,Institute of Petroleum Studies
[3] Greenfield-Oaks Limited,Technical Department
[4] Niger Delta University,Department of mechanical Engineering
来源：
Arabian Journal for Science and Engineering | 2012年 / 37卷
关键词：
Chromate; Phosphate; Conversion coatings; Thin films; Aerospace; Adhesion;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Investigations of chromate and chromate–phosphate conversion coatings on aluminium using SIMS and AES techniques revealed that they are composed of hydrated chromium oxide/hydroxide and chromium phosphate respectively. These compositions are consistent with the electrochemical mechanism for conversion coating formation on aluminium. Enrichment of the outermost regions of the coatings with coating solution species suggests the gradual migration of these species under a concentration gradient towards the metal/coating interface where coating formation and growth consume such species.
引用
收藏
页码：59 / 64
页数：5
相关论文
共 50 条
  • [31] Alternative conversion coatings to chromate for the protection of magnesium alloys
    Pommiers, Sebastien
    Frayret, Jerome
    Castetbon, Alain
    Potin-Gautier, Martine
    CORROSION SCIENCE, 2014, 84 : 135 - 146
  • [32] THE COMPOSITION AND PROTECTIVE PROPERTIES OF CHROMATE CONVERSION COATINGS ON MAGNESIUM
    SIMARANOV, AY
    MARSHAKOV, AI
    MIKHAILOVSKII, YN
    PROTECTION OF METALS, 1992, 28 (05): : 576 - 580
  • [33] Comparison of the behaviours of chromate and sol-gel coatings on aluminium
    Liu, Y.
    Feng, Z.
    Walton, J.
    Thompson, G. E.
    Skeldon, P.
    Zhou, X.
    SURFACE AND INTERFACE ANALYSIS, 2013, 45 (10) : 1446 - 1451
  • [34] Chromate replacement in coatings for corrosion protection of aerospace aluminium alloys
    Markley, T. A.
    Mardel, J. I.
    Hughes, A. E.
    Hinton, B. R. W.
    Glenn, A. M.
    Forsyth, M.
    MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION, 2011, 62 (09): : 836 - 840
  • [35] Corrosion of chromate conversion films on aluminium in electrically bonded interfaces
    Razavi, Reza Shoja
    ANTI-CORROSION METHODS AND MATERIALS, 2007, 54 (05) : 283 - 288
  • [36] DETERMINATION OF CHROMATE CONTENT OF CHROMATE CONVERSION FILMS ON ZINC
    WILLIAMS, LFG
    ANALYTICA CHIMICA ACTA, 1977, 94 (01) : 199 - 200
  • [37] The use of macroscopic modelling of intermetallic phases in aluminium alloys in the study of ferricyanide accelerated chromate conversion coatings
    Juffs, L
    Hughes, AE
    Furman, S
    Paterson, PJK
    CORROSION SCIENCE, 2002, 44 (08) : 1755 - 1781
  • [38] Studying the formation process of chromate conversion coatings on aluminium using continuous electrochemical noise resistance measurements
    Tan, YJ
    Bailey, ST
    Kinsella, B
    CORROSION SCIENCE, 2002, 44 (06) : 1277 - 1286
  • [39] The use of macroscopic modelling of intermetallic phases in aluminium alloys in the study of ferricyanide accelerated chromate conversion coatings
    Juffs, L
    Hughes, AE
    Paterson, PJK
    MICRON, 2001, 32 (08) : 777 - 787
  • [40] POST-TREATMENT OF PHOSPHATE COATINGS - CHROMATE FREE OPTIONS
    LINDERT, A
    MAURER, JI
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1985, 190 (SEP): : 142 - PME
12345