Deterioration and anti-corrosion behaviors of overlapped layer between Al-5mg alloy thermal spray coating and heavy-duty paint coating in highly corrosive atmospheric environment

2020 ◽  
Author(s):  
Shigenobu Kainuma ◽  
Muye Yang ◽  
Haoxuan Yang ◽  
Kazuyoshi Muto ◽  
Hirokazu Miyata
Keyword(s):  
Thermal Spray ◽  
Spray Coating ◽  
Thermal Spray Coating ◽  
Atmospheric Environment ◽  
Heavy Duty ◽  
Paint Coating ◽  
Corrosion Behaviors

Deterioration Behaviors of Overlapping Layers between Al-5Mg Alloy Thermal Spray Coating and Heavy-Duty Paint Coating

2017 ◽  
Vol 754 ◽  
pp. 55-58
Author(s):  
Shigenobu Kainuma ◽  
Jin Xuan Du ◽  
Mu Ye Yang ◽  
Kazuyoshi Muto ◽  
Hirokazu Miyata
Keyword(s):  
Thermal Spray ◽  
Spray Coating ◽  
Effective Area ◽  
Thermal Spray Coating ◽  
Steel Plates ◽  
Heavy Duty ◽  
Paint Coating ◽  
Straight Line ◽  
Cyclic Corrosion ◽  
Sealing Treatment

The objective of this study is to clarify the deterioration behaviors of overlapping layers between Al-5Mg alloy thermal spray coating and heavy-duty paint coating. Combined cyclic corrosion tests were carried out on common carbon steel plates with overlapping layers. To evaluate the effective area of the sacrificial anode reaction caused by the thermal spray coating, machined straight-line defects with widths of 0.2, 6 and 12 mm were introduced in the overlapping layer. The experimental results indicated that the layers began to deteriorate from the lower part of the thermal spray coating along the defects. The deterioration of the thermal spray coating was accelerated by the sealing treatment. The blister area and height at the overlapping layer were significantly different depending on the sealing treatment.

Deterioration Characteristics of Overlapping Layers between Al-5Mg Thermal Spray Coating and Heavy-Duty Paint Coating

2019 ◽  
Vol 972 ◽  
pp. 235-240 ◽  
Author(s):  
Mu Ye Yang ◽  
Kazuyoshi Muto ◽  
Shigenobu Kainuma ◽  
Jin Xuan Du ◽  
Hirokazu Miyata
Keyword(s):  
Thermal Spray ◽  
Spray Coating ◽  
Steel Structures ◽  
Thermal Spray Coating ◽  
Heavy Duty ◽  
Paint Coating ◽  
Spray Coatings ◽  
Steel Base ◽  
Eis Measurements ◽  
Deterioration Characteristics

In recent years, Al-5Mg alloy thermal spray coatings have been used as an anti-corrosion coating applied for various components of steel structures, in some cases it was covered by the conventional heavy-duty coating. However, the deterioration characteristics of overlapping layers between thermal spray layer and heavy-duty paint coating still not clear. In this study, to compare the anti-corrosion characteristics of the single thermal spray coating and overlapping layers, the accelerated cyclic exposure tests were carried out on specimens with three types of coating layers. To clarify the deterioration characteristics, the cross-cut defect were introduced into specimens, and the EIS measurements, glossiness test, EPMA elemental analyses were conducted on test specimens. The test results indicated that the deterioration of the overlapping layer at the steel base-exposed portion occurs earlier than the case of Al-5Mg thermal spray coating. In addition, the deterioration of thermal spray coating was accelerated by the sealing treatment in specimen with overlapping layers.

Preparation of spherical Y2SiO5 powders for thermal-spray coating

Particuology ◽  
2009 ◽  
Vol 7 (5) ◽  
pp. 368-372 ◽  
Author(s):  
Yangbao Qian ◽  
Linzhong Du ◽  
Weigang Zhang
Keyword(s):  
Thermal Spray ◽  
Spray Coating ◽  
Thermal Spray Coating

Investigation into the Effects of High Temperature on Mechanical Properties of Thermal Spray Coatings Applied by Plasma Spraying

2018 ◽  
Vol 284 ◽  
pp. 1151-1156
Author(s):  
Lenar N. Shafigullin ◽  
A.R. Ibragimov ◽  
A.I. Saifutdinov
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
High Temperature ◽  
Thermal Spray ◽  
Spray Coating ◽  
Thermal Spray Coating ◽  
Thermal Spray Coatings ◽  
Spray Coatings ◽  
Heat Treatment Of Coatings ◽  
Double Heat Treatment

C. C. Berndt advanced investigations of mechanical properties of thermal spray coatings under 4-point bending. He found that this investigation method is sensitive to the mechanical properties of thermal spray coatings.This paper contains the detailed investigation results for thermal spray coatings of zirconium dioxide under 4-point bending, i.e. tests of the specimens subjected to spraying at varying conditions and pre-test soaking with the various duration at 1100 °С.It was established how the mechanical properties of thermal spray coatings changed depending on the spraying mode and high temperature soaking. The test results show that the double heat treatment of coatings is more preferable than one-time heat treatment as it make the properties change linearly. It is more easily controllable during operation of the components with thermal spray coating.

scholarly journals Thermal Spray Coating: A New Way of Protecting Wood

BioResources ◽  
2016 ◽  
Vol 12 (1) ◽  
Author(s):  
Mojgan Nejad ◽  
Romina Shafaghi ◽  
Larry Pershin ◽  
Javad Mostaghimi ◽  
Paul Cooper
Keyword(s):  
Thermal Spray ◽  
Spray Coating ◽  
Thermal Spray Coating

scholarly journals Thermal Spray Coating of Al-Cu-Fe Quasicrystals: Dynamic Observations and Surface Properties

2019 ◽  
Author(s):  
Hadi Parsamehr ◽  
Tai-Sheng Chen ◽  
Ding-Shiang Wang ◽  
Ming-Sheng Leu ◽  
Insung Han ◽  
...  
Keyword(s):  
Surface Properties ◽  
Thermal Spray ◽  
Spray Coating ◽  
Thermal Spray Coating
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