many efforts have been made to model the the hot deformation (dynamic recrystallization) flow curves of different materials. phenomenological constitutive models, physical-based constitutive models and artificial neural network (ann) models are the main methods used for this purpose. however, there is no report on the modeling of warm deformation (dynamic spheroidization) flow curves of any kin...

Aalto University, P.O. Box 11000, FI-00076 Aalto www.aalto.fi Author Jue Li Name of the doctoral dissertation Numerical Simulations for Reliability Assessment of Lead-Free Solder Interconnections in BGA Packages Publisher School of Electrical Engineering Unit Department of Electronics Series Aalto University publication series DOCTORAL DISSERTATIONS 48/2011 Field of research Electronics Product...

AZ91D and 8.5vol.% SiCp/AZ91D magnesium matrix composites were fabricated by a semi-solid extruded processing method, treated with solution aging heat treatment. The effects of SiCp on the microstructures alloy during recrystallization studied observing analyzing microstructure evolution extrusions treatments. results show that addition inhibits dynamic extrusion only 26% volume fraction recrys...