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Su Juanhua
Li Hejun
College of Materials Science
and Engineering,
Northwestern Polytechnical University,
Xi’an 710072, China
Dong Qiming
Liu Ping
Kang Buxi
College of Materials Science
and Engineering,
Henan University of Science
and Technology,
Luoyang 471003, China |
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FINITE ELEMENT ANALYSIS ABOUT STRESS AND STRAIN OF SURFACE
PEELING IN Cu-Fe-P SHEET*
Abstract: The microstructure of surface peeling in finish rolled Cu-0.1Fe-0.03P sheet is analyzed by scanning electron microscope and energy dispersive spectroscope. Fe-rich areas of different contents are observed in the matrix. The stress distributions and strain characteristics at the interface between Cu matrix and Fe particle are studied by elastic-plastic finite element plane strain model. Larger Fe particles and higher deforming extent of finish rolling are attributed to the intense stress gradient and significant non-homogeneity equivalent strain at the interface and accelerate surface peeling of Cu-0.1Fe-0.03P lead frame sheet.
Key words:
Cu-0.1Fe-0.03P sheet Surface peeling Finish rolling Finite element analysis Stress and strain
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