Cluster Expansions for Thermodynamics and Kinetics of Multicomponent Alloys

Cluster expansions have proven a very useful tool to model thermodynamics and kinetics of substitutional alloys in metallic, ionic, and even covalently bonded systems. Cluster expansions are usually obtained with the structure inversion method in which the energies, or other relevant property, of a set of structures are used to obtain expansion...

Cold cracking in DC-cast high strength aluminum alloy ingots: An intrinsic problem intensified by casting process parameters

For almost half a century the catastrophic failure of direct chill (DC) cast high strength aluminum alloys has been challenging the production of sound ingots. To overcome this problem, a criterion is required that can assist the researchers in predicting the critical conditions which facilitate the catastrophic failure of the ingots. This could...

Study of Cold Cracking during DC-casting of High Strength Aluminum Alloys

Investigation of fracture behavior of high strength aluminum alloys in the as-cast condition

Constitutive parameters, mechanical properties and failure mechanism in DC-cast AA7050 billets

Numerical simulation of residual thermal stresses in AA7050 alloy during DC-casting using ALSIM5

Non-homogenous cooling rates and solidification conditions during DC-casting of high strength aluminum alloys result in the formation and accumulation of residual thermal stresses with different signs and magnitudes in different locations of the billet. Rapid propagation of microcracks in the presence of thermal stresses can lead to catastrophic...

Cold cracking development in AA7050 DC-cast billets under various casting conditions

On the development of a cold cracking criterion for DC-casting of high strength aluminum alloys