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Braz. J. Phys. vol.40 número4

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FIG. 1: Schematic diagram of thermo-mechanical processing: (1) Reheated to (1180,1250 ◦ C) at a rate of 10 K/s; (2) Held for 20 min in reheating temperature; (3) gap time to receiving billets from furnace to mill; (4) Deformed at temperatures generally bet
FIG. 6: Variations and optical micrography of austenite grain size versus reheating temperature.
FIG. 7: Showing optical micrography of various samples: a and b at 1180 ◦ C, c and d at 1240 ◦ C, e and f at 1180 ◦ C

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