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steel research international, 2021
A low‐carbon, high‐strength steel is treated by different quenching and partitioning (QP) and quenching and tempering (QT) routes in a salt bath furnace, and its wear performance is evaluated by impact abrasive wear tests. It is observed as compared with the traditional QT steel; the QP steel manifests better wear performance at the quenching ...
Zhirui Wei +5 more
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A low‐carbon, high‐strength steel is treated by different quenching and partitioning (QP) and quenching and tempering (QT) routes in a salt bath furnace, and its wear performance is evaluated by impact abrasive wear tests. It is observed as compared with the traditional QT steel; the QP steel manifests better wear performance at the quenching ...
Zhirui Wei +5 more
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Quenching and Partitioning: Science and Technology
2013A lecture given by John Speer, at the Adventures in the Physical Metallurgy of Steels (APMS) conference held in Cambridge University. The quench and partitioning process involves partial transformation to martensite, followed by an increase in temperature to permit the excess carbon to partition into the residual austenite.
Speer, John +3 more
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2020
?? ???????????? ?????????????? ????????????-?????????????????????? ???????????? ?? ???????????????????????? ???????????????? ?????????????????????????????????? ?????????? 60??2??????, ???????????????????????? ?????????????????? ??Quenching and Partitioning?? (Q-n-P).
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?? ???????????? ?????????????? ????????????-?????????????????????? ???????????? ?? ???????????????????????? ???????????????? ?????????????????????????????????? ?????????? 60??2??????, ???????????????????????? ?????????????????? ??Quenching and Partitioning?? (Q-n-P).
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Microstructure Characterization of Quenching and Partitioning Steels
Materials Science Forum, 2018A steel containing Fe-0.2C-2Mn-Si-Al was annealed using intercritical Q&P cycles. Quenching temperature and partitioning time at 440°C was varied. Analysis of microstructure evolution during such Q&P treatments was performed using different characterization tools: FEG-SEM, EBSD, dilatometer and saturation magnetization measurements. Especially,
Irene de Diego Calderon +3 more
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Carbon and strain partitioning in a quenched and partitioned steel containing ferrite
Acta Materialia, 2019Abstract We applied a hot rolling direct quenching and partitioning (HDQ&P) process to a low-C low-Si Al-added steel and obtained a Q&P steel containing 40 vol % of ferrite. Microstructure characterization was performed by means of SEM, EBSD, TEM and XRD.
Xiaodong Tan +7 more
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Quenching and Partitioning in Hot Stamped Steels
Heat Treating Conference, 2017Abstract The present work is the first stage of an ongoing research project concerning with integration of quenching and partitioning heat treatment into the traditional hot stamping process, for 22MnB5 alloy, high Si and high Mn steels, last two proposed for the research with a special chemical composition to enhance Quenching and ...
Claudia Ramón-Reyna +5 more
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Acta Materialia, 2015
Abstract Carbon partitioning from martensite into austenite in the quenching and partitioning (Q&P) process has been suggested to be controlled by the constrained carbon equilibrium (CCE) criterion. It defines an approach for predicting the carbon concentration in austenite under the condition that competing reactions such as carbide formation and ...
Toji, Y., Miyamoto, G., Raabe, D.
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Abstract Carbon partitioning from martensite into austenite in the quenching and partitioning (Q&P) process has been suggested to be controlled by the constrained carbon equilibrium (CCE) criterion. It defines an approach for predicting the carbon concentration in austenite under the condition that competing reactions such as carbide formation and ...
Toji, Y., Miyamoto, G., Raabe, D.
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Metallurgical and Materials Transactions A, 2017
A so-called QP-LE model, in which interface condition is assumed to be Local Equilibrium (LE), has been proposed to evaluate the effect of interfacial Mn partitioning on interface migration and carbon partitioning during the Quenching and partitioning process (Q&P) of an Fe-0.3C-3.0Mn-1.5Si (wt pct) alloy.
Zongbiao Dai +5 more
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A so-called QP-LE model, in which interface condition is assumed to be Local Equilibrium (LE), has been proposed to evaluate the effect of interfacial Mn partitioning on interface migration and carbon partitioning during the Quenching and partitioning process (Q&P) of an Fe-0.3C-3.0Mn-1.5Si (wt pct) alloy.
Zongbiao Dai +5 more
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Quenching and partitioning processing of transformable ferritic stainless steels
Scripta Materialia, 2011Austenite was stabilized at room temperature in a low-interstitial 16%Cr transformable ferritic stainless steel by quenching from the intercritical annealing temperature to below the martensite start temperature of the intercritical austenite prior to the partitioning of interstitials C and N to the austenite at or above the quenching temperature ...
Mola, J, De Cooman, BC
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Microstructural Response of High Aluminum Steels to Quenching and Partitioning Treatment
Volume 2A: Advanced Manufacturing, 2013Quenching and Partitioning (Q&P) is a novel heat treatment process that is able to produce steels with a microstructure consisting of controlled amounts of finely divided retained austenite in a martensitic or ferritic-martensitic matrix. Following quenching to a temperature in the Ms-Mf range, the steel is subjected to partitioning treatment that ...
Tuomo Nyyssönen +3 more
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