期刊
JOURNAL OF THERMAL SPRAY TECHNOLOGY
卷 21, 期 5, 页码 831-837出版社
SPRINGER
DOI: 10.1007/s11666-012-9777-7
关键词
bonding strength; cold spraying; deposition efficiency; magnesium coating; particle size
资金
- Ao-Xiang Star Project of Northwestern Polytechnical University
- Program for New Century Excellent Talents in University
- Ministry of Education of China [NECT-08-0463]
- 111 Project [B08040]
Two types of magnesium powders with different particle size distributions were deposited by cold spraying at different main gas temperatures. The effects of gas temperature and particle size distribution on the deposition efficiency of particles were studied. The microstructure of coatings was observed, and the porosity of coatings was evaluated. The deposition efficiency of particles increased, and the porosity of coatings decreased with the increase of gas temperature. The deposition efficiency of particles increased when using the powder with a smaller particle size distribution. Stainless steel and aluminum plates were used as substrates. The bonding strength and mechanism between the coating and substrate were studied. The commercial finite element software ABAQUS was used to help us better understand the deformation behavior of particles and substrates. The mean bonding strength slightly increased when aluminum plates were used as substrates. The bonding mechanism of Mg coatings on stainless steel and aluminum substrates was discussed.
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