steel research international · 2012 · 16 citations · 27 references
Natural SciencesMaterials EngineeringMaterials ScienceMechanical Behavior Of MaterialsMetallurgySolid MechanicsAlloysAustenite DecompositionSteel MaterialsStrain AnalysisStrain Rate EffectsStress-strain BehaviorAustenite StabilityAustenite TransformationDeformation BehaviorDynamic Strain AgingRetained AusteniteSofteningTensile DeformationTensile Response At High Strain Rates
Abstract In the present study, the influences of temperature and strain rate on the deformation behavior of cold‐rolled TRIP800 steel were investigated. Microstructural observation and tensile tests were performed and volume fractions of retained austenite were measured at various temperatures and strain rates. The results reveal that both temperature and strain rate affect the volume fractions of retained austenite that transforms into martensite. The strain‐induced transformation of retained austenite is retarded with increasing temperature and the retained austenite becomes more stable against straining. The amount of retained austenite that transforms into martensite is not influenced significantly by strain rate. The variation in mechanical properties with temperature and strain rate was related to the effects of dynamic strain aging, tempering of banite, high temperature softening, and the volume fractions of retained austenite.
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Pascal Jacques, Francis Delannay, Jean Ladrière · Metallurgical and Materials Transactions A · 2001 · 386 citations
Natural Sciences, Materials Engineering, Materials Science +16