Results 151 to 160 of about 387 (175)
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Materials Science and Technology, 1999
AbstractAn attempt is made to rationalise some contradictory observations on the effect of austenite grain size on the overall kinetics of the bainite transformation in steels. Experiments have been carried out on two steels which show opposite effects of austenite grain size on the reaction rate.
A. Matsuzaki, H.K.D.H. Bhadeshia
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AbstractAn attempt is made to rationalise some contradictory observations on the effect of austenite grain size on the overall kinetics of the bainite transformation in steels. Experiments have been carried out on two steels which show opposite effects of austenite grain size on the reaction rate.
A. Matsuzaki, H.K.D.H. Bhadeshia
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Transformation plasticity and kinetic during bainite transformation on a 22MnB5 steel grade
Materialwissenschaft und Werkstofftechnik, 2016The use of press hardening components has widely increased in the last decades in the automotive industry due to the possibility to obtain high strength parts with ductile zones for energy absorption. Conventional and partial press hardening are used depending on the needed properties of the final components.
D. S. Schicchi, M. Hunkel
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Materials Science and Technology, 2000
AbstractIn this paper, the effect of stress and strain on bainitic transformation kinetics and transformation plasticity have been studied quantitatively by means of experiments on a Gleeble-1500 testing machine. It is concluded that applied stresses will promote the evolution of bainitic transformation and increase the maximum volume fraction of the ...
Z. Liu, K.F. Yao, Z. Liu
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AbstractIn this paper, the effect of stress and strain on bainitic transformation kinetics and transformation plasticity have been studied quantitatively by means of experiments on a Gleeble-1500 testing machine. It is concluded that applied stresses will promote the evolution of bainitic transformation and increase the maximum volume fraction of the ...
Z. Liu, K.F. Yao, Z. Liu
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Acta Materialia, 2013
Abstract In this work, we modify existing models to simulate the kinetics of bainitic transformation during the bainitic isothermal transformation (BIT) stage of a typical two-stage heat treatment – BIT is preceded by an intercritical annealing treatment – for TRIP steels. This effort is motivated by experiments performed in a conventional TRIP steel
S. Li, R. Zhu, I. Karaman, R. Arróyave
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Abstract In this work, we modify existing models to simulate the kinetics of bainitic transformation during the bainitic isothermal transformation (BIT) stage of a typical two-stage heat treatment – BIT is preceded by an intercritical annealing treatment – for TRIP steels. This effort is motivated by experiments performed in a conventional TRIP steel
S. Li, R. Zhu, I. Karaman, R. Arróyave
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Unified Kinetics Modeling of Isothermal Bainite Transformation in 60Si2CrA Steel
Metallurgical and Materials Transactions A, 2018In this study, isothermal bainite transformation kinetics in hypo-eutectoid steel 60Si2CrA was investigated. Isothermal transformation at temperature ranging from [528 K (255 °C)] to [653 K (380 °C)] after austenitization was performed on a quenching dilatometer.
He Huang +3 more
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Analytical Description of the Bainite Transformation Kinetics in Steels 300M and D6AC
Materials Science Forum, 2017The most widely used equation for analytical description of the transformation kinetics of the metastable solid solutions (the steel austenite in particular) is Kolmogorov-Johnson-Mehl-Avrami (KJMA) equation [1]. However the practical analysis of the experimental isothermal bainite transformation kinetics often gives significant deviation from the ...
Aleksandra A. Kuklina +2 more
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Metallurgical and Materials Transactions A, 2009
The role of time-temperature path on the isothermal austenite-to-bainite phase transformation of low alloy 51 CrV 4 steel was investigated and the corresponding microstructures were analyzed. The important finding is that an incomplete initial austenitization treatment leaves undissolved carbides in the matrix, such that lower carbon and chromium ...
H.-G. Lambers +3 more
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The role of time-temperature path on the isothermal austenite-to-bainite phase transformation of low alloy 51 CrV 4 steel was investigated and the corresponding microstructures were analyzed. The important finding is that an incomplete initial austenitization treatment leaves undissolved carbides in the matrix, such that lower carbon and chromium ...
H.-G. Lambers +3 more
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Microstructures and reaction kinetics of bainite transformation in Si-rich steels
Materials Science and Engineering: A, 2004Abstract The microstructures and kinetics of upper and lower bainite formed in three high silicon steels with high, medium, and low carbon content have been studied. Carbide precipitation in carbon-enriched austenite is retarded by the addition of silicon (∼2 wt.%). The width of upper bainite sub-unit was found to decrease with decreasing temperature,
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Microstructure and transformation kinetics in bainitic steels
2008Mechanical Maritime and Materials ...
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Analysis of the Kinetics of Isothermal Bainitic Transformation in Alloy Steels
Metal Science and Heat Treatment, 2023M. V. Maisuradze +3 more
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