NUCLEATION AND FORMATION OF ZINC PHOSPHATE CONVERSION COATING ON COLD-ROLLED STEEL

被引：61

作者：

TEGEHALL, PE ^{[1
]}

VANNERBERG, NG ^{[1
]}

机构：

[1] GOTHENBURG UNIV,S-41296 GOTHENBURG,SWEDEN

来源：

CORROSION SCIENCE | 1991年 / 32卷 / 5-6期

关键词：

D O I：

10.1016/0010-938X(91)90112-3

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The basic reactions in the nucleation and formation of zinc phosphate coatings on cold-rolled steel have been studied. The iron oxides on the steel surface were found to be crucial for the formation of a fine-grained phosphate coating. The best result was obtained if the oxide layer consisted mainly of gamma-Fe2O3. The temperature of the steel also influences the nucleation of zinc phosphate crystals, whereas accelerators, such as nitrate and nitrite, have little effect on the number of nuclei formed on an oxidized surface. The accelerators increase the growth rate of the phosphate crystals and thereby shorten the time needed for the formation of a covering phosphate coating.

引用

页码：635 / 652

页数：18

共 46 条

[1]

AUGUSTSSON PE, 1983, WERKST KORROS, V34, P563

[2] EFFECTS OF CALCIUM-IONS ON THE MORPHOLOGY AND CORROSION-RESISTANCE OF ZINC-PHOSPHATED STEEL [J].

BHAR, GN ;

DEBNATH, NC ;

ROY, S .

SURFACE & COATINGS TECHNOLOGY, 1988, 35 (1-2) :171-179

[3]

BLOOM MC, 1965, CORROS SCI, V5, P623

[4] CATHODIC REDUCTION OF OXIDE FILMS ON IRON .2. DETERMINATION OF ALPHA-FE2O3 AND FE3O4 [J].

BUOB, KH ;

BECK, AF ;

COHEN, M .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1958, 105 (02) :74-78

[5] MECHANISM OF PHOSPHATING OF STEEL [J].

GHALI, EL ;

POTVIN, RJA .

CORROSION SCIENCE, 1972, 12 (07) :583-&

[6]

HELLIWELL N, 1976, T I MET FINISH, V54, P185

[7] SURFACE CHARACTERISTICS OF COLD-ROLLED STEEL AS THEY AFFECT PAINT PERFORMANCE [J].

IEZZI, RA ;

LEIDHEISER, H .

CORROSION, 1981, 37 (01) :28-38

[8] THE INFLUENCE OF PHOSPHORUS ALLOY ADDITIONS ON THE ZINC PHOSPHATE COATING FORMATION ON COLD-ROLLED STEELS [J].

KARGOL, JA ;

JORDAN, DL .

CORROSION, 1982, 38 (04) :201-206

[9] EFFECTS OF COMPOSITION OF PHOSPHATE SOLUTION ON WET ADHESION OF ZN-NI ALLOY ELECTROPLATED STEEL SHEET [J].

KITAYAMA, M ;

ODASHIMA, H ;

SAITO, T ;

HIRANO, Y .

TETSU TO HAGANE-JOURNAL OF THE IRON AND STEEL INSTITUTE OF JAPAN, 1985, 71 (10) :1343-1350

[10]

MAEDA S, 1983, J COATING TECHNOL, V55, P43

← 1 2 3 4 5 →