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Abstract: The temperature fields during liquid infiltration extrusion
of composites are simulated with the finite element method, the seepage
fields of liquid metal are simulated with the finite difference method.
Temperature fields and seepage fields are coupled and calculated, then
the temperature variation curves, infiltration front process curves and
velocity variation curves along with time are got by FORTRAN program and
ANSYS software. The results indicate that the fiber radius, infiltration
pressure, liquid metal viscosity coefficient and the volume fraction of
perform affect the infiltration velocity of liquid metal and the
infiltration process. The ideal temperature distribution in filtrated
region may be got through selecting the appropriate process parameters.
The analysis for the simulation results provide theoretic basis for the
rational choice of the process parameters.
Key words: Liquid infiltration extrusion Metal matrix composites
Darcy law Coupled analysis
CLC No: O242
TB323 TG376
国家自然科学基金(No.50175091)、陕西省自然科学基金(2001C17)和国防预研基金(51412010304HK0339)资助项目.
Received 20030909, received in revised form 20040604
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