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等离子喷涂Al-Mo涂层的高温硫化和氧化行为研究
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作者单位:

1.华东理工大学;2.宝钢工业技术服务有限公司

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中图分类号:

中图分类号:TG174.442

基金项目:

国家自然科学基金(51775189),航空基金 (2015ZES7001),上海市科委基地建设项目(16DZ2260604)


The high-temperature sulfidation and oxidation behavior of plasma-sprayed Al-Mo coatings
Author:
Affiliation:

1.Key Laboratory of Pressure System and Safety,Ministry of Education,East China University of Science and Technology;2.Shanghai Baosteel Industry Technological Service Co,LTD

Fund Project:

Aviation Fund (2015ZES7001), Science and Technology Commission of Shanghai Municipality Project (No. 16DZ2260604) and Shanghai Pujiang Program (15PJD009)

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    摘要:

    烧嘴是水煤浆气化系统的重要部件。运行过程中的高温硫化经常导致烧嘴提前失效,进而影响设备的安全稳定运行。本文采用等离子喷涂方法制备了Mo为粘结层的Al-Mo涂层,测量其在973 K, 1073 K and 1173 K的硫化和氧化行为,并与Mo涂层和Inconel合金进行比较。结果表明Al-Mo涂层的高温硫化抗力和氧化抗力均优于Mo涂层,高温硫化抗力优于Inconel合金。该涂层的提出为喷嘴失效问题的解决提供了便捷、有效的技术方案。

    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 are deposited by plasma spraying with a Mo bonding layer. The sulfidation and oxidation behavior of the Al-Mo coatings is studied and compared with those of Mo coatings and Inconel 600 alloy at 973 K, 1073 K and 1173 K. It is found 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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吴良敏,王卫泽,于景业,黄继波,李朝雄.等离子喷涂Al-Mo涂层的高温硫化和氧化行为研究[J].稀有金属材料与工程,2018,47(12):3610~3615.[Liangmin Wu, Weize Wang, Jingye Yu, Jibo Huang, Chaoxiong Li. The high-temperature sulfidation and oxidation behavior of plasma-sprayed Al-Mo coatings[J]. Rare Metal Materials and Engineering,2018,47(12):3610~3615.]
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  • 收稿日期:2017-05-05
  • 最后修改日期:2017-11-29
  • 录用日期:2018-06-21
  • 在线发布日期: 2019-01-04
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