BOF Slag

Name: BOF Slag
Diagram No.: 1143
Type of diagram: TTT
Chemical composition in weight %: See the table
Group: Slags
Note: (a) Schematic diagram of the temperature profile for constructing TTT curve (sample 5A as an example); (b) TTT diagram of the original and modified BOF slags. Tn1, Tn2, Tn3, and Tn4 are the nose temperature of original, 5, 10, and 15 wt% Al2O3 modified slags. The line is drawn as a guide for the eye.
Schematic diagram of the temperature history and TTT curves of the original and Al2O3 modified slag are shown in Figure 1a and 1b, respectively. The crystallisation temperature of the slags was remarkably decreased by adding Al2O3. Within 20 min, the highest temperature to visualise the crystallisation of the original slag is 1510C, while it decreases to 1270C for the sample 15A. The nose temperature (...., at which the incubation time is shortest) and liquidus temperature (Tl) also decreased with Al2O3 addition.
Reference: Not shown in this demo version.

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