Plasma Spray, Detonation Gun, and HVOF Deposition Techniques
Plasma Spray, Detonation Gun, and HVOF Deposition Techniques
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等离子喷涂、爆轰枪和 HVOF 沉积技术
DOI：
10.1007/978-94-011-0077-9_7
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发表时间：
1995
期刊：
影响因子：
--
通讯作者：
R. Tucker
中科院分区：
文献类型：
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作者：
R. Tucker
热喷涂工艺提供了独特的机会，可以将几乎任何熔化而不分解的材料（包括大多数金属、陶瓷、金属陶瓷和一些聚合物）的相对致密、结合良好的涂层涂覆到金属和其他基材上，而无需显着加热基材。因此，例如，熔点远高于 3000°F 的氧化物可以应用于低熔点合金（例如铝），而无需将铝加热到超过 150°C，因此不会改变其冶金结构或机械性能。本文介绍了最突出的先进热喷涂工艺、等离子喷涂、高速氧燃料和爆轰枪工艺，包括工艺自动化、工艺控制和质量控制方面的进步。热喷涂涂层用于耐磨和耐腐蚀、作为热障以及许多其他应用。当然，它们执行任何这些功能的能力取决于它们的成分和微观结构。这些将根据它们的沉积参数及其应用进行讨论。我们将根据实验室磨损、腐蚀和热冲击测试在为特定应用选择涂层时的实用性进行讨论。在某些情况下，将与其他表面处理进行比较。
Thermal spray processes provide unique opportunities to apply relatively dense, well bonded coatings of virtually any material that melts without decomposing (including most metallics, ceramics, cermets, and some polymerics) to metallic and other substrates without significantly heating the substrate. Thus, for example, an oxide with a melting point well over 3000°F can be applied to a low melting point alloy such as aluminum without heating the aluminum over 150°C and, therefore, without changing its metallurgical structure or mechanical properties. This paper describes the most prominent advanced thermal spray processes, plasma spray, high velocity oxy-fuel, and detonation gun processes, including advances in process automation, process control, and quality control.Thermal spray coatings are used for wear and corrosion resistance, as thermal barriers, and for many other applications. Their ability to perform any of these functions is, of course, a function of their composition and microstructure. These will be discussed in light of their deposition parameters and related to their applications. Laboratory wear, corrosion, and thermal shock tests will be discussed in light of their utility in selecting coatings for specific applications. In some instances a comparison will be made to other surface treatments.