Effect of initial grain size on the mechanical behaviour of austenite during deformation under hot-working conditions

• Published in: Materials science & engineering. A, Structural materials : properties, microstructure and processing Vol. 799; p. 139553
• Main Authors: Puchi-Cabrera, Eli Saúl, Guérin, Jean-Dominique, La Barbera-Sosa, José Gregorio, Dubar, Mirentxu, Dubar, Laurent
• Format: Journal Article
• Language: English
• Published: Lausanne Elsevier B.V 02.01.2021; Elsevier BV; Elsevier
• Subjects: Austenite; Austenitic grain size; Compression tests; Constitutive description; Deformation; Dynamic recrystallization kinetics; Engineering Sciences; Grain boundaries; Grain growth; Grain growth kinetics; Grain size; Hot working; Kinetics; Mechanical properties; Mechanics; Parameters; Recrystallization; Strain analysis; Strain rate; Yield strength; Yield stress; Grain growth kinetics; Dynamic recrystallization kinetics; Yield stress; Austenitic grain size; Constitutive description; "Dynamic recrystallization kinetics"; "Yield stress"; "Constitutive description"; "Grain growth kinetics"; "Austenitic grain size"

The present investigation has been conducted to study the effect of the austenitic grain size (AGS) on the flow stress behaviour of austenite, deformed in a wide range of temperatures and strain rates, employing samples of a commercial ER7 steel grade. To accomplish this objective, a novel general m...