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| Effect of parameters of cold sprayed Cu particles on its impacting behavior |
| LI Wenya; LI Changjiu; WANG Yuyue; YANG Guanjun |
| State Key Laboratory for Mechanical Behavior of Materials; Xi'an Jiaotong University;Xi'an 710049 |
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Cite this article:
LI Wenya; LI Changjiu; WANG Yuyue; YANG Guanjun. Effect of parameters of cold sprayed Cu particles on its impacting behavior. Acta Metall Sin, 2005, 41(3): 282-286 .
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Abstract The impacting behavior of Cu particle upon Cu substrate in cold
spraying was studied using the finite element analysis, involving the
effects of
particle velocity and temperature prior to impact on the deformation
behavior, temperature increment and contact area at the particle--substrate
interface. It was found that with increasing the particle impact
velocity the flattening ratio, temperature increment and contact area at
the interface increase. It was confirmed that the critical velocity for
the onset of shear instability of particle was consistent with that for
particle
deposition. As the particle velocity is higher than the critical one, the
flattening ratio, temperature increment and contact area at the interface increase
more significantly, which will benefit the formation of the bond between
particle and substrate. With the increase of particle temperature the
temperature at the interface increases significantly. The relatively
high temperature achieved the melting point of particle material at the
localized contact zone may promote the formation of the metallurgical
bonding in the coating.
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Received: 06 April 2004
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[1] Alkimov A P, Kosarev V F. Dokl Akad Nauk SSSR, 1990; 315: 1062
[2] Papyrin A. Adv Mater Process, 2001; 159: 49
[3] Assadi H, Gartner F, Stoltenhoff T, Kreye H. Acta Mater, 2003; 51: 4379
[4] Gilmore D L, Dykhuizen R C, Neiser R A, Roemer T J, Smith M F. J Therm Spray Technol, 1999; 8: 576
[5] Dykhuizen R C, Smith M F, Gilmore D L, Neiser R A, Jiang X, Sampath S. J Therm Spray Technol, 1999; 8: 559
[6] Papyrin A N, Kosarev V F, Klinkov S V, Alkimov A P. In: Lugscheider E, ed., Tagungsband Conference Proceedings, Essen: German Welding Society, 2002: 419
[7] Li C J, Li W Y, Fukanuma H. In: von Hofe D, ed., Thermal Spray Solutions Advances in Technology and Applications, Dusseldorf: German Welding Society, 2004: 335
[8] Li C J, Li W Y. Surf Coat Techol, 2003; 167: 278
[9] Borvik T, Hopperstad O S, Berstad T, Langseth M. Int J Impact Eng, 2002; 27: 37
[10] Livermore Software Technology Corporation. LS-DYNA Theoretical Manual, Livermore, Calif, USA, 1998
[11] Wu L. Welding Handbook (Vol.1: Welding Processes and Equipment). Beijing: China Machine Press, 2001: 723 吴林.焊接手册(第1卷:焊接方法及设备).北京:机械工 业出版社,2001:723)
[12] Zheng Y M. Explosive Welding and Metallic Composite and Their Engineering Application. Changsha: Central South University Press, 2002: 14 (郑远谋.爆炸焊接和金属复合材料及其工程应用.长沙:中南 大学出版社,2002:14) |
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