TY - GEN
T1 - A transport phenomena based model to prevent liquation cracking in aluminum alloy welds
AU - Mishra, S.
AU - Chakraborty, S.
AU - DebRoy, T.
PY - 2005/12/1
Y1 - 2005/12/1
N2 - A numerical model has been developed for non-equilibrium solidification in welds that considers momentum, heat and solute transport. The model uses an effective partition coefficient, which considers both the local interface velocity and the undercooling for accurate prediction of solute concentration in the mushy zone. The calculations show that convection plays a dominant role in the solute transport inside the weld pool. The predicted weld metal solute content agreed well with the independent experimental observations. The liquation cracking susceptibility in Al-Cu alloy weldments could be reliably predicted by the model, based on the computed solidifying weld metal composition and the resulting solid fraction considering non-equilibrium solidification.
AB - A numerical model has been developed for non-equilibrium solidification in welds that considers momentum, heat and solute transport. The model uses an effective partition coefficient, which considers both the local interface velocity and the undercooling for accurate prediction of solute concentration in the mushy zone. The calculations show that convection plays a dominant role in the solute transport inside the weld pool. The predicted weld metal solute content agreed well with the independent experimental observations. The liquation cracking susceptibility in Al-Cu alloy weldments could be reliably predicted by the model, based on the computed solidifying weld metal composition and the resulting solid fraction considering non-equilibrium solidification.
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M3 - Conference contribution
AN - SCOPUS:33751545048
SN - 0871708426
SN - 9780871708427
T3 - ASM Proceedings of the International Conference: Trends in Welding Research
SP - 35
EP - 40
BT - Trends in Welding Research - Proceedings of the 7th International Conference
T2 - 7th International Conference on Trends in Welding Research
Y2 - 16 May 2005 through 20 May 2005
ER -