Corrosion Resistance of Plasma-Electrolytic Layers on Alloys and Coatings of the Al-Cu-Mg System for Various Modes of Heat Treatment

被引：12

作者：

Student, M. M. ^{[1
]}

Posuvailo, V. M. ^{[1
]}

Veselivs'ka, H. H. ^{[1
]}

Sirak, Ya. Ya. ^{[1
]}

Yatsyuk, R. A. ^{[2
]}

机构：

[1] Ukrainian Natl Acad Sci, Karpenko Physicomech Inst, Lvov, Ukraine

[2] Lvivska Politekhn Natl Univ, Lvov, Ukraine

来源：

MATERIALS SCIENCE | 2018年 / 53卷 / 06期

关键词：

electric-arc coating; aluminum; plasma-electrolytic oxidation; corrosion resistance;

D O I：

10.1007/s11003-018-0137-8

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We study the influence of its microstructure of an Al-Cu-Mg alloy sprayed by the electric-arc method in the intact state and with oxide-ceramic coating on its corrosion resistance in synthetic weakly acid media. It is shown that the increase in the temperature of annealing the electric-arc coating results in the growth of Al2Cu intermetallic inclusions acting as cathodic inclusions and increasing the sizes of pores in the oxide-ceramic coatings. These changes promote a significant increase in corrosion currents both in the electric-arc coating and in the oxide-ceramic layer on it. It is shown that the corrosion currents formed in the electric-arc coatings without oxide-ceramic layer are stronger by an order of magnitude.

引用

页码：789 / 795

页数：7

共 8 条

[1] Thermo-physical properties of plasma electrolytic oxide coatings on aluminium [J].

Curran, JA ;

Clyne, TW .

SURFACE & COATINGS TECHNOLOGY, 2005, 199 (2-3) :168-176

[2] Porosity and corrosion properties of electrolyte plasma coatings on magnesium alloys [J].

Dietzel, W ;

Klapkiv, M ;

Nykyforchyn, H ;

Posuvailo, V ;

Blawert, C .

MATERIALS SCIENCE, 2004, 40 (05) :585-590

[3] EXPRESS METHOD FOR DETERMINING THE PRESENCE OF DEFECTS OF THE SURFACE OF OXIDE-CERAMIC COATINGS [J].

Ivasenko, I. B. ;

Posuvailo, V. M. ;

Klapkiv, M. D. ;

Vynar, V. A. ;

Ostap'yuk, S. I. .

MATERIALS SCIENCE, 2009, 45 (03) :460-464

[4]

Knunyants I. L, 1988, CHEM ENCY, V1-5

[5] Properties of synthesised oxide ceramic coatings in electrolyte plasma on aluminium alloys [J].

Nykyforchyn, HM ;

Klapkiv, MD ;

Posuvailo, VM .

SURFACE & COATINGS TECHNOLOGY, 1998, 100 (1-3) :219-221

[6]

Posuvailo V. M., 2017, MATER SCI ENG, V181, P157

[7] Strength Optimization of a Two-Layer Coating for the Particular Local Loading Conditions [J].

Shatskyi, I. P. ;

Ropyak, L. Ya. ;

Makoviichuk, M. V. .

STRENGTH OF MATERIALS, 2016, 48 (05) :726-730

[8]

Student M. M., 2014, FIZ KHIM MEKH MATER, V50, P116

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