Effect of heat treatment on corrosion resistance and adhesion property in Zn-Mg-Zn multi-layer coated steel prepared by PVD process
- Title
- Effect of heat treatment on corrosion resistance and adhesion property in Zn-Mg-Zn multi-layer coated steel prepared by PVD process
- Author
- 김영도
- Keywords
- Zn-Mg alloy; Alloying behavior; Heat treatment; Corrosion resistance; Adhesion property
- Issue Date
- 2017-01
- Publisher
- ELSEVIER SCIENCE SA
- Citation
- SURFACE & COATINGS TECHNOLOGY, v. 309, page. 1010-1014
- Abstract
- In this study, as the alternatives to the depletion of Zn resources, the Zn-Mg alloy was deposited on a steel substrate by a PVD process. Considering the difference of vapor pressure between Zn and Mg in vacuum condition, Zn, Mg and Zn were sequentially coated by PVD process to form a uniform coating layer, and a heat treatment was separately conducted at 200 degrees C under vacuum condition. As the heating time increased, the volume fraction of the intermetallic compound phases (Mg2Zn11 and MgZn2) gradually increased up to the heat-treated sample for 360 s. From the OT-bending test, delamination of the coating layer was observed from heat-treated sample for 240 s which is composed of over 85% of the intermetallic compound phases. And from the salt spray test, it is confirmed that the red rust generation time was 624 h in heat-treated sample for 360 s which was composed entirely of Zn-Mg intermetallic compound phases. (C) 2016 Elsevier B.V. All rights reserved.
- URI
- https://www.sciencedirect.com/science/article/abs/pii/S0257897216310398?via%3Dihubhttps://repository.hanyang.ac.kr/handle/20.500.11754/106061
- ISSN
- 0257-8972
- DOI
- 10.1016/j.surfcoat.2016.10.043
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > MATERIALS SCIENCE AND ENGINEERING(신소재공학부) > Articles
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