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Ultrasonic cavitation erosion mechanism and mathematical model of HVOF sprayed Fe-based amorphous/nanocrystalline coatings
Qiao, Lei; Wu, Yuping; Hong, Sheng; Cheng, Jie
2019-04-01
Source PublicationULTRASONICS SONOCHEMISTRY
ISSN1350-4177
Volume52Pages:142-149
AbstractA Fe-based amorphous/nanocrystalline coating was prepared on the AISI 321 steel by the high-velocity oxygen fuel (HVOF) thermal spraying technology in this paper. Cavitation erosion behavior and mechanism of the coating was studied through the analysis of curves for cavitation erosion resistance versus time and the observation of eroded particles, with the AISI 321 steel as a reference. It was found that the Fe-based coating had better cavitation erosion resistance than the AISI 321 steel, and exhibited obvious periodic failure behavior in the cavitation erosion process. Besides, the crystallization of the amorphous phase under the effect of shock wave was observed. The cavitation erosion mathematic model of the coating was also established. The model indicated that the cavitation erosion resistance of the coating was related to the grain size and the fracture energy per unit area of the coating. Small grain size and high fracture energy per unit area were benefit to improve the cavitation erosion resistance of the Fe-based coating.
KeywordCavitation erosion Fe-based coating Amorphous/nanocrystalline Eroded particles Model
Indexed BySCI
Language英语
WOS IDWOS:000467509200017
PublisherELSEVIER SCIENCE BV
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/81214
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Qiao, Lei,Wu, Yuping,Hong, Sheng,et al. Ultrasonic cavitation erosion mechanism and mathematical model of HVOF sprayed Fe-based amorphous/nanocrystalline coatings[J]. ULTRASONICS SONOCHEMISTRY,2019,52:142-149.
APA Qiao, Lei,Wu, Yuping,Hong, Sheng,&Cheng, Jie.(2019).Ultrasonic cavitation erosion mechanism and mathematical model of HVOF sprayed Fe-based amorphous/nanocrystalline coatings.ULTRASONICS SONOCHEMISTRY,52,142-149.
MLA Qiao, Lei,et al."Ultrasonic cavitation erosion mechanism and mathematical model of HVOF sprayed Fe-based amorphous/nanocrystalline coatings".ULTRASONICS SONOCHEMISTRY 52(2019):142-149.
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