Materials Transactions Online

Materials Transactions, Vol.51 No.10 (2010) pp.1977-1980
© 2010 The Japan Institute of Metals

Simulation of Deposition Behavior of Bulk Amorphous Particles in Cold Spraying

Xianglin Zhou, Xiangkun Wu, Saijie Mou, Jingchun Liu and Jishan Zhang

State Key Laboratory for Advanced Metals and Materials, University of Science & Technology, Beijing, Beijing 100083, P. R. China

Bulk amorphous Zr41.2Ti13.8Cu12.5Ni10Be22.5 powders were chosen as feedstock to investigate the deposition behavior of amorphous alloy particles in cold spraying. The constitutive equation of the particles was established. Using the finite element method, the effects of velocity and preheating temperature of the particles on their deformation behavior were studied, the temperature changes near the contact interface were calculated, the relationship between deposition behavior and effective bonding was analyzed, and finally the coating generation mechanism with the cooling conditions were discussed.

(Received 2010/6/21; Accepted 2010/7/27; Published 2010/9/8)

Keywords: cold spraying, bulk amorphous, powders, deposition

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