TY - GEN
T1 - Deterioration Characteristics of Overlapping Layers between Al-5mg Thermal Spray Coating and Heavy-Duty Paint Coating
AU - Yang, Muye
AU - Muto, Kazuyoshi
AU - Kainuma, Shigenobu
AU - Du, Jinxuan
AU - Miyata, Hirokazu
N1 - Publisher Copyright:
© 2019 Trans Tech Publications Ltd, Switzerland.
PY - 2019
Y1 - 2019
N2 - 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.
AB - 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.
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U2 - 10.4028/www.scientific.net/MSF.972.235
DO - 10.4028/www.scientific.net/MSF.972.235
M3 - Conference contribution
AN - SCOPUS:85089719420
SN - 9783035715309
T3 - Materials Science Forum
SP - 235
EP - 240
BT - Building Materials, Materials Design and Applications
A2 - Sun, Hongqi
A2 - Omatsu, Takashige
A2 - Yang, Tracy
PB - Trans Tech Publications Ltd
T2 - 4th International Conference on Building Materials and Construction, ICBMC 2019 and the 2nd International Conference on Materials Design and Applications, ICMDA 2019
Y2 - 13 April 2019 through 15 April 2019
ER -