@inproceedings{70c4e216daaf4a8797a42411c87f5506,
title = "Influence of spray materials and their surface oxidation on the critical velocity in cold spraying",
abstract = "The critical velocity is an important parameter in cold spraying. It determines the deposition efficiency under a given spray condition. The critical velocity depends not only on materials types, but also particle temperature and oxidation conditions. In present paper, three types of materials including copper, 316L stainless steel, Monel alloy were used to deposit coatings by cold spraying. The critical velocities of spray materials were determined using a novel measurement method. Oxygen content in three powders was changed by isothermal oxidation at ambient atmosphere. The effect of oxygen content on the critical velocity was examined. It was found that the critical velocity in cold spray was significantly influenced by particle oxidation condition besides materials properties. The critical velocity of Cu particles changed from about 300 m/s to over 610 m/s with the change of oxygen content in powder. It is evident that the materials properties influence the critical velocity more remarkable at low oxygen content than high oxygen content. The results suggest that with a severely oxidized powder the critical velocity tends to be dominated by oxide on the powder surface rather than materials properties.",
author = "Li, \{C. J.\} and Wang, \{H. T.\} and Q. Zhang and Yang, \{G. J.\} and Li, \{W. Y.\} and Liao, \{H. L.\}",
year = "2009",
doi = "10.1361/cp2009itsc0342",
language = "英语",
isbn = "9781615030040",
series = "Proceedings of the International Thermal Spray Conference",
pages = "342--347",
booktitle = "Expanding Thermal Spray Performance to New Markets and Applications - Proceedings of the 2009 International Thermal Spray Conference, ITSC 2009",
note = "Expanding Thermal Spray Performance to New Markets and Applications - 2009 International Thermal Spray Conference, ITSC 2009 ; Conference date: 04-05-2009 Through 07-05-2009",
}