Residual stresses in hot bulk formed parts: two-scale approach for austenite-to-martensite phase transformation
Sonja Uebing, Dominik Brands, Lisa Scheunemann, Jörg Schröder
Abstract
Abstract In production engineering, current research focuses on the induction of targeted residual stress states in components in order to improve their properties. Therein, the combination of experiment and simulation plays an important role. In this contribution, a focus is laid on the investigation of hot forming processes with subsequent cooling. A numerical approach is presented to analyze the distribution of residual stresses resulting from cooling of a cylinder with an eccentric hole made of chromium-alloyed steel. The occurring phase transformation, which is evoked by cooling, is considered in order to compute residual stress distributions inside the material.
Topics & Concepts
Residual stressMaterials scienceAusteniteMartensiteTransformation (genetics)ResidualPhase (matter)MetallurgyMechanicsStructural engineeringEngineeringMicrostructureMathematicsPhysicsAlgorithmChemistryGeneQuantum mechanicsBiochemistryMicrostructure and Mechanical Properties of SteelsMetallurgy and Material FormingMetal Forming Simulation Techniques