Glass-like CexOy sol-gel coatings for corrosion protection of aluminium and magnesium alloys

被引：28
|
作者：
Rosero-Navarro, N. C. [1 ]
Curioni, M. [2 ]
Castro, Y. [1 ]
Aparicio, M. [1 ]
Thompson, G. E. [2 ]
Duran, A. [1 ]
机构：
[1] Inst Ceram & Vidrio CSIC, Madrid 28049, Spain
[2] Univ Manchester, Ctr Corros & Protect, Sch Mat, Manchester M13 9PL, Lancs, England
来源：
SURFACE & COATINGS TECHNOLOGY | 2011年 / 206卷 / 2-3期
基金：
英国工程与自然科学研究理事会;
关键词：
Glass-like coating; Cerium; Corrosion; Self-healing protection; OPTICAL-PROPERTIES; CONVERSION COATINGS; THIN-FILMS; CERIUM; NANOPARTICLES; INHIBITION; AA2024-T3; BEHAVIOR; METALS; SILANE;
D O I：
10.1016/j.surfcoat.2011.07.006
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
This work reports the preparation of glass-like, environmentally-friendly, cerium-based coatings for active corrosion protection of aluminium and magnesium alloys. It describes the production of cerium sol-gel sols from cerium nitrate and their deposition by immersion and automatic spray onto aluminium and magnesium alloys to produce uniform coatings with amorphous (glass-like) structures (CexOy). The coatings have been characterised by profilometry, scanning electron microscopy (SEM), spectral ellipsometry and UV-visible, in order to analyse the structure and density of the glass-like cerium coatings as well as their redox ratio Ce4+/Ce3+ as a function of pH and sintering temperature. Finally, electrochemical measurements (EIS) and standard corrosion tests (neutral salt spray, filiform corrosion, immersion-emersion test and adhesion on embossing and T-bend test) have been performed to study the corrosion behaviour of the cerium glass-like coatings on aluminium and magnesium alloys. EIS measurements confirm the healing or blocking of the defects by the corrosion inhibiting species. Excellent corrosion protection is provided by cerium glass-like coatings, satisfying the most demanding industrial requirements. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码：257 / 264
页数：8
相关论文
共 50 条
  • [31] Sol-gel silica coatings for the protection of cultural heritage glass
    Dal Bianco, Barbara
    Bertoncello, Renzo
    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 2008, 266 (10): : 2358 - 2362
  • [32] Protection of aluminum alloys via hybrid sol-gel coatings with encapsulated organic corrosion inhibitors
    Khramov, A. N.
    Balbyshev, V. N.
    Mantz, R. A.
    ALUMINIUM ALLOYS 2006, PTS 1 AND 2: RESEARCH THROUGH INNOVATION AND TECHNOLOGY, 2006, 519-521 : 661 - 666
  • [33] Glass-like cerium based coatings for the active protection of aluminum alloys
    Reyes, Yhasynin
    Duran, Alicia
    Castro, Yolanda
    BOLETIN DE LA SOCIEDAD ESPANOLA DE CERAMICA Y VIDRIO, 2015, 54 (01): : 28 - 36
  • [34] Corrosion protection of sol-gel coatings doped with an organic corrosion inhibitor: Chloranil
    Quinet, M.
    Neveu, B.
    Moutarlier, V.
    Audebert, P.
    Ricq, L.
    PROGRESS IN ORGANIC COATINGS, 2007, 58 (01) : 46 - 53
  • [35] Application of modified aerosil in sol-gel synthesis of doped glass-like materials
    Poddenezhnyj, E.N.
    Bojko, A.A.
    Alekseenko, A.A.
    Borisenko, N.V.
    Bogatyrev, V.M.
    2003, Nauka, Sankt Peterburg (29):
  • [36] Novel hybrid sol-gel coatings for corrosion protection of AZ31B magnesium alloy
    Lamaka, S. V.
    Montemor, M. F.
    Galio, A. F.
    Zheludkevich, M. L.
    Trindade, C.
    Dick, L. F.
    Ferreira, M. G. S.
    ELECTROCHIMICA ACTA, 2008, 53 (14) : 4773 - 4783
  • [37] Inhibitor-doped sol-gel coatings for corrosion protection of magnesium alloy AZ31
    Galio, A. F.
    Lamaka, S. V.
    Zheludkevich, M. L.
    Dick, L. F. P.
    Mueller, I. L.
    Ferreira, M. G. S.
    SURFACE & COATINGS TECHNOLOGY, 2010, 204 (9-10): : 1479 - 1486
  • [38] Sol-gel coatings with phosphonate functionalities for surface modification of magnesium alloys
    Khramov, A. N.
    Balbyshev, V. N.
    Kasten, L. S.
    Mantz, R. A.
    THIN SOLID FILMS, 2006, 514 (1-2) : 174 - 181
  • [39] Sol-gel coatings of low sintering temperature for corrosion protection of ZE41 magnesium alloy
    Lopez, A. J.
    Rams, J.
    Urena, A.
    SURFACE & COATINGS TECHNOLOGY, 2011, 205 (17-18): : 4183 - 4191
  • [40] Synthesis of hybrid sol-gel coatings for corrosion protection of we54-ae magnesium alloy
    Hernandez-Barrios, C. A.
    Duarte, N. Z.
    Hernandez, L. M.
    Pena, D. Y.
    Coy, A. E.
    Viejo, F.
    2ND INTERNATIONAL MEETING FOR RESEARCHERS IN MATERIALS AND PLASMA TECHNOLOGY, 2013, 466
12345