Journal
APPLIED SURFACE SCIENCE
Volume 270, Issue -, Pages 519-525Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apsusc.2013.01.073
Keywords
AZ80 Mg alloy; Microarc oxidation; (Ti:N)-DLC top film; Microstructure; Properties
Categories
Funding
- Natural Science Foundation of China [51201176]
- Ningbo Municipal Nature Science Foundation [201101A6105005]
- Major projects of Department of Science and Technology of Zhejiang Province [2010C13025-1]
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Ti and N co-doped diamond-like carbon ((Ti:N)-DLC) film was deposited on the MAO coated substrate using a hybrid beam deposition system, which consists of a DC magnetron sputtering of Ti target and a linear ion source (LIS) with C2H2 and N-2 precursor gas. The microstructure and properties of the duplex (Ti:N)-DLC/MAO coating were investigated. Results indicate that the (Ti:N)-DLC top film with TiN crystalline phase was formed. Ti and N co-doping resulted in the increasing I-D/I-G ratio. The significant improvement in the wear and corrosion resistance of duplex (Ti:N)-DLC/MAO coating was mainly attributed to the increased binding strength, lubrication characteristics and chemical inertness of (Ti:N)DLC top film. The superior low-friction and anti-corrosion properties of duplex (Ti:N)-DLC/MAO coating make it a good candidate as protective coating on magnesium alloy. Crown Copyright (C) 2013 Published by Elsevier B.V. All rights reserved.
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