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Stability of retained austenite in TRIP-assisted steels
Materials Science and Technology, 2004AbstractA theory is developed for the quantitative representation of the strain induced transformation of retained austenite in low alloy, TRIP-assisted steels of the type developed for the automobile industry. It is possible, therefore, to calculate the fraction of austenite as a function of the plastic strain, chemical composition, deformation ...
Mohamed Sherif +2 more
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The effect of morphology on the stability of retained austenite in a quenched and partitioned steel
Scripta Materialia, 2013Synchrotron X-ray diffraction and transmission electron microscopy experiments are employed to investigate the mechanical stability of retained austenite in a quenching and partitioning steel. It is found that martensitic transformation takes place in high carbon blocky retained austenite at the onset of deformation, while low carbon film-like retained
M X Huang
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Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing, 2017 The mechanical and thermal stability of austenite in multiphase advanced high strength steels are influenced by the surrounding microstructure. The mechanisms underlying and the relations between thermal and mechanical stability are still dubious due to ...
J Hidalgo +2 more
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Stability of retained austenite in high carbon steel – Effect of post-tempering heat treatment
Materials Characterization, 2019 This work represents a fundamental study that investigates the effect of post-tempering heat treatment on hardness and the stability of retained austenite in dual phase high carbon steel.
Rumana Hossain +2 more
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Microstructures and stability of retained austenite in TRIP steels
Materials Science and Engineering: A, 2006Abstract Transformation induced plasticity (TRIP) steels exhibit a combination of high strength and ductility due to their multi-phase microstructure, including ferrite, bainite and retained austenite which transforms to martensite under the external stress.
X.D. Wang +3 more
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Stabilization of retained austenite due to partial martensitic transformations
Acta Metallurgica et Materialia, 1994Laboratory of Engineering Materials, Helsinki University of Technology, SF-02150, Espoo 15, Finland (Received 20 December 1993) A~traet--The stabilization effect of retained austenite has been studied using Fe-Ni~C alloys with M s temperatures below 0°C via a two-step cooling procedure, i.e. the samples were first cooled to a temperature (Ta) below M s
Z.L. Xie, Y. Liu, H. Hänninen
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On the stabilization of retained austenite: mechanism and kinetics
Materials Science and Engineering: B, 1995Abstract Stabilization of retained austenite is now well established and refers primarily to a process where further martensite transformation is hindered. However, the literature shows a wide variety of ways in which this impediment can be brought into play.
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Transactions of the Indian Institute of Metals, 2016
The effects of stress and austenitization temperature on the carbon content and morphology of retained austenite (RA) have been investigated. The stability of RA has been analyzed. An interesting finding is that the increase in the amount of bainite is not accompanied by the increase in the carbon content in RA under the effect of stress. This does not
Mingxing Zhou, Guang Xu, Li Wang, Bei He
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The effects of stress and austenitization temperature on the carbon content and morphology of retained austenite (RA) have been investigated. The stability of RA has been analyzed. An interesting finding is that the increase in the amount of bainite is not accompanied by the increase in the carbon content in RA under the effect of stress. This does not
Mingxing Zhou, Guang Xu, Li Wang, Bei He
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Stabilization mechanisms of retained austenite in transformation-induced plasticity steel
Metallurgical and Materials Transactions A, 2001Three stabilization mechanisms—the shortage of nuclei, the partitioning of alloying elements, and the fine grain size—of the remaining metastable austenite in transformation-induced plasticity (TRIP) steels have been studied by choosing a model alloy Fe-0.2C-1.5Mn-1.5Si.
Jiajun Wang, Sybrand Van Der Zwaag
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Optimizing the Morphology and Stability of Retained Austenite in a δ-TRIP Steel
Metallurgical and Materials Transactions A, 2014δ-TRIP is a low-alloy steel in which ferrite persists at all temperatures in the solid-state, with the remaining microstructure consisting of carbide-free bainite and carbon-enriched retained austenite. The present work explores for the first time, how changes in the intercritical annealing temperature and the transformation conditions associated with ...
H. L. Yi, P. Chen, H. K. D. H. Bhadeshia
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