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使用标准和减少火焰喷雾固体测量制造的LVOF喷射的Ni基复合涂料腐蚀性能的比较研究
Abdelhek Idir1, Francesco Delloro2, Rassim Younes1
1Laboratory of Mechanics, Materials and Energetic, Faculty of Technology, University of Bejaia, Bejaia 06000, Algeria.
Materials (Basel, Switzerland)
|January 23, 2024
概括
在火焰喷雾涂层中优化氧气/燃料比可以显著降低孔隙性,提高耐腐蚀性. 这种方法对于提高NiWCrBSi合金涂层在恶劣环境中的性能至关重要.
科学领域:
- 材料科学 材料科学 材料科学
- 腐蚀工程 腐蚀工程
背景情况:
- 涂层参数极大地影响火焰喷雾效率和质量.
- 氧气/燃料比和喷雾距离是影响涂层孔隙性和耐腐蚀性的关键因素.
研究的目的:
- 为了研究火焰氧气/燃料比率和喷雾距离对NiWCrBSi合金涂层的影响.
- 了解微观结构,多孔性和腐蚀行为之间的关系.
主要方法:
- 使用氧乙烯火焰喷雾/Flexicord-wire (FS/FC) 进行NiWCrBSi合金涂层的沉积.
- 分析微观结构,相组成和腐蚀性能.
- 应用同等电路建模来讨论腐蚀机制.
主要成果:
- 火焰的氧气/燃料比与涂层的孔隙性和腐蚀性能有显著的相关性.
- 优化的火焰固体测量导致孔隙性降低和耐腐蚀性提高.
- 当参数经过仔细选择时,NiWCrBSi涂层在恶劣环境中表现出有希望的性能.
结论:
- 氧气与燃料的比率是增强火焰喷雾/Flexicord-wire (FS/FC) 陶涂层的关键参数.
- 仔细控制火焰固体测量对于实现低孔度和高腐蚀性能至关重要.
- 这项研究为在苛刻条件下先进应用陶涂层提供了途径.
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