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EFFECT OF NITRIDE COATINGS ON THE CYCLIC OXIDATION BEHAVIOR OF TI6AL4V ALLOY |
CHEN Qian1,2, XIN Li2, TENG Yingyuan1, ZHU Shenglong2, WANG Fuhui2 |
1. Shenyang Aerospace University, School of Aerospace Engineering, Shenyang 110136
2. State Key Laboratory for Corrosion and Protection, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016 |
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Abstract Ti0.5Al0.5N/Ti0.7Al0.3N double-layered film and Ti0.6Al0.3Si0.1N film were deposited on Ti6Al4V alloy by the arc ion plating (AIP) method. It was found that the deposition of the films of the two types significantly improved cyclic oxidation resistance of the Ti6Al4V alloy at 550℃ and 650℃, due to the formation of a thin and continuous Al2O3-rich scale. At 750℃, a good cyclic oxidation resistance still remained for the Ti0.6Al0.3Si0.1N-coated Ti6Al4V but not for the Ti0.5Al0.5N/Ti0.7Al0.3N-coated alloy.
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Received: 21 October 2010
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Corresponding Authors:
CHEN Qian
E-mail: cq1106@163.com
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