Influence of activation treatment with nickel acetate on the zinc phosphate coating formation and corrosion resistance

2013 ◽  
Vol 65 (10) ◽  
pp. 977-981 ◽  
Author(s):  
K. Abdalla ◽  
A. Rahmat ◽  
A. Azizan
Keyword(s):  
Corrosion Resistance ◽  
Zinc Phosphate ◽  
Nickel Acetate ◽  
Phosphate Coating ◽  
Coating Formation

Study on an elaborated method to improve corrosion resistance of zinc phosphate coating

2017 ◽  
Vol 14 (3) ◽  
pp. 709-720 ◽  
Author(s):  
L. Fathyunes ◽  
M. Azadbeh ◽  
M. Tanhaei ◽  
S. O. R. Sheykholeslami
Keyword(s):  
Corrosion Resistance ◽  
Zinc Phosphate ◽  
Phosphate Coating ◽  
Improve Corrosion Resistance

The Influence of Phosphorous Alloy Additions on the Zinc Phosphate Coating Formation on Cold Rolled Steels

CORROSION ◽  
1982 ◽  
Vol 38 (4) ◽  
pp. 201-206 ◽  
Author(s):  
James A. Kargol ◽  
Donald L. Jordan
Keyword(s):  
Zinc Phosphate ◽  
Sheet Steel ◽  
Steel Corrosion ◽  
High Strength ◽  
Phosphate Coating ◽  
Hydrogen Recombination ◽  
Abrasive Surface ◽  
Coating Formation ◽  
Cold Rolled ◽  
Steel Corrosion Resistance

Abstract One of the more common and economical means of producing cold rolled and annealed sheet steel with high strength and formability is by alloying with phosphorous (P). However, the P alloy additions have been found to increase the porosity in zinc phosphate pretreatment coatings which, in turn, may reduce painted steel corrosion resistance. Electrochemical measurements indicated that P increases phosphate coating porosity by inhibiting hydrogen recombination during the first stages of phosphate coating formation. Abrasive surface conditioning of rephosphorized steel did not remove the inhibiting effect of P; thus, bulk P, and not P that segregated to the surface during annealing, was responsible for the effect.

Corrosion resistance performance of nano-MoS2-containing zinc phosphate coating on Q235 steel

2020 ◽  
Vol 265 ◽  
pp. 127256 ◽  
Author(s):  
Shihao Hu ◽  
Mustafa Muhammad ◽  
Mengzhe Wang ◽  
Ruina Ma ◽  
An Du ◽  
...  
Keyword(s):  
Corrosion Resistance ◽  
Zinc Phosphate ◽  
Phosphate Coating ◽  
Q235 Steel ◽  
Resistance Performance

The Effect of pH on Zinc Phosphate Coating Morphology and its Corrosion Resistance on Mild Steel

2012 ◽  
Vol 626 ◽  
pp. 569-574 ◽  
Author(s):  
Khalid Abdalla ◽  
Rahmat Azmi ◽  
Aziz Azizan
Keyword(s):  
Corrosion Resistance ◽  
Surface Morphology ◽  
Mild Steel ◽  
Zinc Phosphate ◽  
Phosphate Coating ◽  
Metallic Materials ◽  
X Ray ◽  
Ph Values ◽  
Phosphate Coatings ◽  
Coating Morphology

Zinc phosphate coating is commonly used for corrosion protection of metallic materials, mainly mild steel. In this study, influence of the pH of phosphating bath on the surface morphology and corrosion resistance of zinc phosphate coatings on mild steel was investigated. The phosphate layers were deposited on steel from phosphating bath at different pH values (1.75 ~ 2.75). The surface morphology and composition of phosphate coatings were investigated via scanning electron microscopy (SEM), and energy-dispersive X-ray (EDX). The corrosion resistance of the coating was evaluated by polarization curves (anodic and cathodic) in an aerated 3.5% NaCl solution. The results showed that better surface coverage and corrosion resistance for the steel phosphated at pH 2.75.

scholarly journals Defining-Measuring-Analysing-Improving-Controlling (DMAIC): Process and Improve Stability in Carbon Steel Industry

2021 ◽  
Vol 2129 (1) ◽  
pp. 012029
Author(s):  
M S Ishak ◽  
M S Jusoh ◽  
A G M Rosli ◽  
D H M Yusuf ◽  
M S Ismail
Keyword(s):  
Corrosion Resistance ◽  
Carbon Steel ◽  
Steel Industry ◽  
Zinc Phosphate ◽  
Iron Phosphate ◽  
Phosphate Coating ◽  
Excellent Corrosion Resistance ◽  
Materials Used ◽  
Dmaic Method ◽  
Lubricating Properties

Abstract Phosphating is most common method for surface treatment and finishing of ferrous and nonferrous metal. It has excellent corrosion resistance, wear resistance, adhesion and lubricating properties besides its economic values and speed of application. Steel is one of the cheapest materials used in various industries and it requires corrosion resistance therapy. This study aims to provide possible solution to the rusty issue on carbon steel product by improving coating stability using Defining–Measuring–Analysing–Improving–Controlling (DMAIC) method. The result proposed that zinc phosphate coating material has to replace current iron phosphate coating due to the former is more corrosion time resistant than that of the latter.

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