Corrosion behavior of Ti-Al-N/Ti-Al duplex coating on AZ31 magnesium alloy in NaCl aqueous solution
Abstract
In this study, Ti-Al-N/Ti-Al duplex coating was deposited on AZ31 magnesium alloy by magnetron sputtering with a Ti/Al composite target. Scanning electron microscopy and Auger electron spectroscopy were applied to investigate the morphology and elemental concentration of the obtained coating, respectively. The top layer was Ti-Al-N film with a Ti:Al:O:N ratio of 0.32:0.84:0.08:1, and the bottom layer was Ti-Al film with a Ti:O:Al ratio of 1.94:0.12:1. Each layer of this coating presented a developed columnar structure. The polarization test and immersion test were used to investigate corrosion behavior of the coated sample in 3.5 wt.% NaCl aqueous solution. The results showed that this duplex coating could protect the substrate effectively in NaCl aqueous solution. Nevertheless, several through-thickness micropores in the coating finally induced the failure of the coated AZ31 in the immersion test.
- Authors:
-
- National Engineering Research Center of Light Alloy Net Forming, Shanghai Jiao Tong University, Shanghai 200030 (China)
- Institute of Biological Science and Technology, Beijing Jiao Tong University, Beijing 100044 (China)
- Shanghai Tianyang Steel Tube Company Limited, Shanghai 201407 (China)
- Publication Date:
- OSTI Identifier:
- 22066109
- Resource Type:
- Journal Article
- Journal Name:
- Materials Characterization
- Additional Journal Information:
- Journal Volume: 60; Journal Issue: 8; Other Information: Copyright (c) 2009 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1044-5803
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; ALUMINIUM; AQUEOUS SOLUTIONS; AUGER ELECTRON SPECTROSCOPY; CORROSION; FAILURES; FILMS; INTERMETALLIC COMPOUNDS; LAYERS; MAGNESIUM ALLOY-AZ31B; MORPHOLOGY; NITROGEN; POLARIZATION; SCANNING ELECTRON MICROSCOPY; SODIUM CHLORIDES; SPUTTERING; SUBSTRATES; TITANIUM
Citation Formats
Wu Guosong, E-mail: wugsjd@126.com, Xuemin, Wang, Kejian, Ding, Yuanyuan, Zhou, and Xiaoqin, Zeng. Corrosion behavior of Ti-Al-N/Ti-Al duplex coating on AZ31 magnesium alloy in NaCl aqueous solution. United States: N. p., 2009.
Web. doi:10.1016/J.MATCHAR.2009.01.009.
Wu Guosong, E-mail: wugsjd@126.com, Xuemin, Wang, Kejian, Ding, Yuanyuan, Zhou, & Xiaoqin, Zeng. Corrosion behavior of Ti-Al-N/Ti-Al duplex coating on AZ31 magnesium alloy in NaCl aqueous solution. United States. https://doi.org/10.1016/J.MATCHAR.2009.01.009
Wu Guosong, E-mail: wugsjd@126.com, Xuemin, Wang, Kejian, Ding, Yuanyuan, Zhou, and Xiaoqin, Zeng. 2009.
"Corrosion behavior of Ti-Al-N/Ti-Al duplex coating on AZ31 magnesium alloy in NaCl aqueous solution". United States. https://doi.org/10.1016/J.MATCHAR.2009.01.009.
@article{osti_22066109,
title = {Corrosion behavior of Ti-Al-N/Ti-Al duplex coating on AZ31 magnesium alloy in NaCl aqueous solution},
author = {Wu Guosong, E-mail: wugsjd@126.com and Xuemin, Wang and Kejian, Ding and Yuanyuan, Zhou and Xiaoqin, Zeng},
abstractNote = {In this study, Ti-Al-N/Ti-Al duplex coating was deposited on AZ31 magnesium alloy by magnetron sputtering with a Ti/Al composite target. Scanning electron microscopy and Auger electron spectroscopy were applied to investigate the morphology and elemental concentration of the obtained coating, respectively. The top layer was Ti-Al-N film with a Ti:Al:O:N ratio of 0.32:0.84:0.08:1, and the bottom layer was Ti-Al film with a Ti:O:Al ratio of 1.94:0.12:1. Each layer of this coating presented a developed columnar structure. The polarization test and immersion test were used to investigate corrosion behavior of the coated sample in 3.5 wt.% NaCl aqueous solution. The results showed that this duplex coating could protect the substrate effectively in NaCl aqueous solution. Nevertheless, several through-thickness micropores in the coating finally induced the failure of the coated AZ31 in the immersion test.},
doi = {10.1016/J.MATCHAR.2009.01.009},
url = {https://www.osti.gov/biblio/22066109},
journal = {Materials Characterization},
issn = {1044-5803},
number = 8,
volume = 60,
place = {United States},
year = {Sat Aug 15 00:00:00 EDT 2009},
month = {Sat Aug 15 00:00:00 EDT 2009}
}