High-temperature Sulfidation and Oxidation Behavior of Plasma-sprayed Al-Mo Coatings

IF 0.6 4区 材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY 稀有金属材料与工程 Pub Date : 2018-12-01 DOI:10.1016/S1875-5372(19)30006-2
Wu Liangmin , Wang Weize , Yu Jingye , Huang Jibo , Li Chaoxiong
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引用次数: 1

Abstract

Gas burner is the key component of coal-water slurry gasifier system. However, due to the sulfidation at high temperature, gas burner often fails in advance, which affects the stable operation of the system. In this work, Al-Mo coatings were deposited by plasma spraying with a Mo bonding layer. The sulfidation and oxidation behavior of the Al-Mo coatings was studied and compared with those of Mo coatings and Inconel 600 alloy at 973, 1073 and 1173 K. Results show that both the high-temperature sulfidation resistance and the high-temperature oxidation resistance of Al-Mo coatings are superior to those of Mo coatings. The high temperature sulfidation resistance of coatings is better than that of Inconel 600 alloy. Plasma-sprayed Al-Mo coatings with a Mo bonding layer are promising candidates for the corrosion protection of steels in a sulfur/oxide-rich atmosphere.

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等离子喷涂Al-Mo涂层的高温硫化和氧化行为
燃气燃烧器是水煤浆气化炉系统的关键部件。但由于高温下的硫化,燃气燃烧器往往会提前发生故障,影响系统的稳定运行。在本研究中,采用等离子喷涂的方法制备了Al-Mo涂层。研究了Al-Mo涂层在973、1073和1173 K下的硫化氧化行为,并与Mo涂层和Inconel 600合金的硫化氧化行为进行了比较。结果表明,Al-Mo涂层的耐高温硫化性能和耐高温氧化性能均优于Mo涂层。涂层的耐高温硫化性能优于Inconel 600合金。带有Mo键合层的等离子喷涂Al-Mo涂层是在富硫/氧化物大气中对钢进行防腐的有希望的候选者。
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来源期刊
稀有金属材料与工程
稀有金属材料与工程 工程技术-材料科学:综合
CiteScore
1.30
自引率
57.10%
发文量
17973
审稿时长
4.2 months
期刊介绍:
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