skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: 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:
 [1];  [2];  [3];  [1]
  1. National Engineering Research Center of Light Alloy Net Forming, Shanghai Jiao Tong University, Shanghai 200030 (China)
  2. Institute of Biological Science and Technology, Beijing Jiao Tong University, Beijing 100044 (China)
  3. 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}
}