Microstructure
SDAS was used as a measure to compare the microstructure generated under different casting scenario. The SDAS sizes were reduced by 32% in the scenario of castings produced using new movable chills.
Porosity
The number of pores was used to measure the quality of the casting produced using movable chills and it was found that porosity had reduced by 27 % in Scenario C and by 50 % in Scenario D.
Trials Figure 20. Average number of pores vs. trials. REFERENCES
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International Journal of Metalcasting/Spring 11
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