RT Journal Article ID 4d056399412314ad A1 Lee, Jae Ryong A1 Park, Il Seouk T1 NUMERICAL SIMULATION OF COOLING A 2D SQUARE BLOCK CONSIDERING PHASE TRANSFORMATION AND CHANGES IN THERMODYNAMIC PROPERTIES JF Heat Transfer Research JO HTR YR 2018 FD 2018-04-05 VO 49 IS 6 SP 483 OP 490 K1 cooling K1 phase transformation K1 exothermic heat K1 thermodynamic property K1 Avrami equation AB During a cooling process, a high-temperature steel usually in austenite phase undergoes a phase transformation to ferrite and bainite. Due to the phase transformation, the material changes its metallurgical structure and hence its mechanical characteristics, including the strength and toughness. In addition, the phase transformation causes a related exothermic reaction and changes the thermodynamic properties. Therefore, the cooling process and its relevant phase transformation should be treated together by coupling them. In this study, the cooling process of a two-dimensional square steel block is investigated numerically by considering the phase transformation from austenite to ferrite. The Johnson–Mehl–Avrami–Kolmogorov (JMAK) equation (Avrami, 1939) was adopted for the phase transformation analysis. The cooling results with and without consideration of the phase transformation eff ect are compared. PB Begell House LK https://www.dl.begellhouse.com/journals/46784ef93dddff27,359b3b593a78373c,4d056399412314ad.html