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The adhesive contact behavior between an indenter and a single crystal copper substrate is performed to investigated based on the EAM(embedded atomic method) and the Morse potentials and the verlet algorithm. The influences of velocity on the contact behavior and substrate deformation are studied and analyzed. It is found that the single crystal copper material's resist deformation level is limited by low velocity, and more dislocated atoms are accumulated under the moving direction of indenter in higher velocity. Moreover, the contact force presents a serrated increase trend because of the atomic reconstruction, phase transition and the atom dislocation is damaged during indenting process. It is seen obviously that chip volume is thickened by the sliding speed and sliding distance increase in slipping process. The contact (friction, normal) force and temperature on the contact area plays a significant role in the elastic-plastic substrate deformation during the whole moving process. Furthermore, the dislocated band in basis lies at the angle of 45 degrees with the moving direction of indenter. © 2015 Trans Tech Publications, Switzerland.
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ISSN: 1013-9826
Year: 2015
Volume: 642
Page: 141-146
Language: English
0 . 2 2 4
JCR@2005
Cited Count:
WoS CC Cited Count: 0
SCOPUS Cited Count: 2
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 4
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