Understanding the Timing Effect of Dendrite Pinch-Off on Fragmentation in Superalloy Solidification
0Consideration of the Timing Effect of Dendrite Pinch-Off on Dendrite Fragmentation During Directional Solidification of Superalloys.
Layman's Abstract: Superalloys made from single crystals are very important for use in engines and power plants because they can handle extremely high temperatures without breaking down. However, during their production, a problem known as "freckles" can form, which weakens the material. Freckles are small, unwanted grains that form in the alloy and can cause defects. These grains typically form when the solidifying material breaks apart in a way that isnโt ideal, often due to the way liquid metal flows during cooling. Scientists have created a model to understand how this happens, focusing on how the liquid metal flows and interacts with the solid parts of the material. However, this model didn't take into account how long it takes for the material to melt and break apart at certain points. In this study, the researchers have added a new factor to the model, considering the time needed for these breaks to happen. With this improved model, they were able to get better results from experiments and understand more about how the freckles form and how the material behaves.
View Link:- https://doi.org/10.9734/bpi/mono/978-93-49473-95-9/CH2
#Superalloys, #AerospaceMaterials, #FreckleFormation, #DendriteFragmentation, #CastingProcess, #HighTemperatureAlloys, #MaterialScience, #SegregationChannels, #SuperalloyProduction, #HighTemperatureMaterials, #CastingDefects, #DendriteGrowth, #FreckleDefects
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