Abstract No.:	5182
Scheduled at:	Wednesday, June 07, 2017, Hall 28 11:10 AM Cold Gas Spraying I
Title:	Broken characteristics of the oxide film in high cold spray deposition
Authors:	Yingchun Xie / LERMPS, UTBM, Université Bourgogne Franche-Comté, France Marie-Pierre Planche/ LERMPS-UTBM, France Rija-nirina Raoelison/ LERMPS, UTBM, Université Bourgogne Franche-Comté, France Christophe Verdy/ LERMPS, UTBM, Université Bourgogne Franche-Comté, France Philippe Herve/ LEME. Université Paris Ouest Nanterre la Défense, France Hanlin Liao*/ University Bourgogne Franche-Comté, France
Abstract:	In cold spraying, oxide-free interface is an important factor for fresh metal contact between powder particles and substrate, which determines the bonding strength and final coating quality. In this study, a designed experiment is performed to examine the deformation behavior of the oxide film on cu particle surface after deposition. The experiment results show that partial oxide film could be disrupted during the high speed impact. However most of the oxide film remain intact after particle deposition which limited generation of oxide free interface. The presence of oxide film at the interfaces between the deposited particles and substrate seriously affecting the metallurgical bonding.

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