高速电弧喷涂技术是在普通电弧喷涂基础上，根据空气动力学原理，将高压气体通过特殊设计的喷管加速后雾化熔融金属，并高速喷射到工件表面形成致密涂层。
...关键词：高速电弧喷涂；Fe-Al金属间化合物；复合涂层；显微组织；高温冲蚀磨损 [gap=1765]Keywords：High velocity arc spraying; Fe-Al intermetallics; composite coating; microstructure; high-temperature eros..
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高速电弧喷涂镍铝涂层结合强度高，涂层组织致密，是优良的打底涂层。
It was proved that high velocity arc spraying Ni-Al coating is one of best intermediate coatings with high adhesive strength and fine structure.
高速电弧喷涂技术是热喷涂技术中的高新技术，高速电弧喷涂枪是实现高速电弧喷涂的关键装置。
High velocity arc spraying is one of the high tech processes in thermal spray devices where the high velocity arc spraying gun is the key equipment.
结果表明：高速电弧喷涂粒子束更加集中，粒子的飞行速度显著提高，粒子的雾化效果明显改善。
The properties and the microstructure of the coating are compared. Results show that concentrated spray plume and high particle velocity are acquired. The quality of atomized particle is improved.
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