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Indexed by:会议论文

Date of Publication:2012-01-01

Included Journals:CPCI-S

Volume:12

Page Number:298-304

Key Words:Cold spraying; Numerical simulation; Initial tempe-rature; Coupled thermal-mechanical analysis

Abstract:In this study, coupled thermal-mechanical analysis of particle impact behavior in cold spraying was conducted for Cu by using ABAQUS program. Some important aspects on particle initial temperature in cold spraying were examined. The results show that initial temperature of particle takes an important role in 3D simulated results. As the initial tempe-rature rising, compression ratio of the particle increases gradually, critical velocity decreases, but depth of the pit charges little. Furthermore, particle initial temperature has some influence on interface temperature rising and the maximum temperature did not occur at the centre point of initial impact. (C) 2011 Published B.V. Elsevier Ltd. Selection and/or peer-review under responsibility of National University of Singapore.