Abstract: In this paper, constitutive
equations and failure strain were used to simulate the
quasi-solid stress, strain and hot cracking during
solidification in Al-5.14% Cu alloy casting with hot spot and
restricted ends. The influence of temperature difference, length
and temperature profile of hot spot region have been
investigated. Results of investigation indicate that hot spot
has important influence on the quasi-solid stress and strain
during solidification, and is a main factor in causing hot
cracking.
Key words:
Al-Cu alloy Quasi-solid state Stress Strain Hot cracking Numerical simulation
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