Mold Slag

Name: Mold Slag
Diagram No.: 1192
Type of diagram: TTT
Chemical composition in weight %: See the table
Group: Slags
Note: Figure 11 shows the cooling history of various points in the slag layer for Case I with Slags A and G. The superimposed TTT curve of a conventional industrial mold slag (7.9%A l2O3)[63] is used to estimate the onset of crystallization for Slag A. Figure 11(a) predicts crystallization in most of the slag layer (including the oscillation marks) except the very thin (0.2 mm) layer adjacent to the mold wall, which is quenched rapidly and remains glassy. Extra alumina in the slag delays the onset of crystallization and increases the temperature range of crystallization, so the TTT curve of a slag with 19.5% Al2O3 [64] is used to estimate the onset of crystallization for Slag G. Figure 11(b) shows that no points within Slag G cross the TTT curve, so no crystalline phase is predicted. This agrees with the assumption that Slag G tends to be glassy.
Reference: Not shown in this demo version.

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