Results 11 to 20 of about 391 (175)
Mathematical Modelling of Bainite Transformation Kinetics [PDF]
Le Journal de Physique IV, 1997 Steels with a mixed microstructure of allotriomorphic ferrite, bainitic ferrite, retained austenite and martensite have potentially good combinations of high strength and formability. This work describes a kinetic theory for the formation of bainite in steels where the precipitation of carbides is suppressed.
Chester, N., Bhadeshia, H.
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Austempering and Bainitic Transformation Kinetics of AISI 52100
Journal of Materials Engineering and Performance, 2021 Abstract AISI 52100 is a high carbon alloy steel typically used in bearings. One hardening heat treatment method for AISI 52100 is austempering, in which the steel is heated to above austenitizing temperature, cooled to just above martensite starting (Ms) temperature in quench media (typically molten salt), held at that temperature until
Haoxing You +3 more
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Metals, 2022 In the present study, the isothermal decomposition of austenite to bainite in 1.0 wt% carbon, 0.21% silicon steel during the partitioning step of a quenching and partitioning (Q&P) heat treatment has been investigated in a dilatometer in the temperature ...
Zeinab Babasafari +5 more
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Effect of Starting Microstructures on the Reverse Transformation Kinetics in Low-Carbon Steel
Metals, 2020 The effect of the initial starting microstructures on the austenite reverse transformation kinetics is thoroughly studied in low-carbon steel. The different initial starting microstructures including the ferrite + pearlite, bainite, and martensite are ...
Junhua Hou, Binbin He
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Materials & Design, 2019 The kinetic models of multiple-stage martensite transformation and subsequent isothermal bainite formation were investigated in intercritical quenching and partitioning steels. The modified K-M model that considering instantaneous kinetic characteristics
Fei Peng +3 more
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Thermodynamic analysis and strength-toughness research of nanobainite
工程科学学报, 2016 In view of slow phase transformation rate in high-carbon,silicon-rich and low-alloy bainite steel(nanostructured bainite steel),the effects of alloy elements on the overall kinetics of low temperature bainite phase transformation were analyzed by using ...
ZHI Chao +4 more
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Materials & Design, 2023 A novel in-situ scanning electron microscope (SEM) characterization technique for observing phase transformation is developed and its results studied and compared to well-founded experimental ex-situ methods as well as numerical modelling of bainite ...
O. Seppälä +6 more
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Applied Sciences, 2022 Carbide-free bainitic (CFB) steels with a matrix of bainitic ferrite and thin layers of retained austenite, to reduce the manufacturing costs, usually do not contain alloying elements.
Behdad Garmeh +5 more
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Evaluation of Displacive Models for Bainite Transformation Kinetics in Steels
MATERIALS TRANSACTIONS, 2006 Several kinetic models for bainite transformation have been widely applied in industry and research. The majority of these models, that do not consider the effect of cementite precipitation during bainite transformation, were validated in high silicon bainitic steels in order to avoid the interference of cementite precipitation during bainite formation.
Santofimia, Maria Jesús +4 more
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An Alternative to Avrami Equation [PDF]
Materials Research, 2019 This paper proposes an alternative to the Avrami equation capable of describing whole transformation curves with significant fitting-correlations. The model bears physically meaningful parameters which permit considering the initial transformation ...
José Roberto Costa Guimarães +2 more
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