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

Muye Yang, Kazuyoshi Muto, Shigenobu Kainuma, Jinxuan Du, Hirokazu Miyata

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

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.

Original languageEnglish
Title of host publicationBuilding Materials, Materials Design and Applications
EditorsHongqi Sun, Takashige Omatsu, Tracy Yang
PublisherTrans Tech Publications Ltd
Pages235-240
Number of pages6
ISBN (Print)9783035715309
DOIs
Publication statusPublished - 2019
Event4th International Conference on Building Materials and Construction, ICBMC 2019 and the 2nd International Conference on Materials Design and Applications, ICMDA 2019 - Tokyo, Japan
Duration: Apr 13 2019Apr 15 2019

Publication series

NameMaterials Science Forum
Volume972 MSF
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Conference

Conference4th International Conference on Building Materials and Construction, ICBMC 2019 and the 2nd International Conference on Materials Design and Applications, ICMDA 2019
CountryJapan
CityTokyo
Period4/13/194/15/19

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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