Local heat transfer and stress analysis of direct chill casting process

Quenching plays an important role in the material processing. It strongly influences the mechanical and metallurgical properties. Water impingement jet quenching involves phenomena such as boiling, Leidenfrost effect, rewetting, etc. This makes thermal boundary conditions dependent on temperature, space, and time. This study mainly focuses on the thermal modelling of moving water jet quenching of semi-solid hot vertical aluminium plate with latent heat release during the solidification by using Peridynamics (PD). The obtained thermal profile is compared with the infrared camera's thermal field data to identify the boiling curve parameters on the cracked plate. The PD model with the incorporation of cracking dynamics is giving agreeable results with the experimental thermal field. Modelling quenching heat transfer using PD will enhance the coupling of hot tear origination and propagation simulation, which is quite challenging with other numerical methods. The application of PD in quenching heat transfer with phase change is the first of its kind. The advantages and limitations of the peridynamic approach for this problem is critically evaluated and the simulated results are compared with the experimental measurement of temperature profiles.

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Local heat transfer and stress analysis of direct chill casting process

Cited by 2 publications

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The Effect of Water Ejection and Rewetting Phenomena on Hot Cracking Sensitivity during Direct Chill Casting of Magnesium Alloy

The Effect of Water Ejection and Rewetting Phenomena on Hot Cracking Sensitivity during Direct Chill Casting of Magnesium Alloy

Peridynamic simulation of heat transfer during quenching of semi-solid plate with occurrence of hot cracks

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