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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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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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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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Room-Temperature Quenching and Partitioning Steel
Metallurgical and Materials Transactions A, 2018The current study proposes a room-temperature quenching and partitioning (RT-Q&P) process to design new steels with an ultrahigh tensile strength (1.3 ~ 1.5 GPa) and a large total elongation (19 ~ 3 pct). This steel has a dual-phase microstructure with metastable austenite grains embedded in the martensite matrix.
B. B. He, L. Liu, M. X. Huang
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Effect of quenching & partitioning process on a low carbon steel
Advanced Materials Letters, 2017Peer ...
DI SCHINO, ANDREA +2 more
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Quenching and Partitioning Automotive Steels
Abstract Quenching and partitioning (Q&P) steel is a term used to describe a series of C-Si-Mn, C-Si-Mn-Al, or other steels subjected to the recently developed Q&P heat treatment process. This article presents compositions, microstructure, processing, mechanical properties, formability, weldability, and special attributes of Q&L. Wang, J.G. Speer
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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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Metals and Materials International, 2020
Five quenching temperatures were designed to investigate the relationship between volume fraction of retained austenite and microstructure, mechanical properties of a medium carbon quenching and partitioning (Q&P) steel. It is normally accepted that the optimal mechanical property of Q&P steels is obtained by quenching at optimum temperature, which ...
Man Liu +4 more
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Five quenching temperatures were designed to investigate the relationship between volume fraction of retained austenite and microstructure, mechanical properties of a medium carbon quenching and partitioning (Q&P) steel. It is normally accepted that the optimal mechanical property of Q&P steels is obtained by quenching at optimum temperature, which ...
Man Liu +4 more
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Study of heat treatment parameters and kinetics of quenching and partitioning cycles
Materials Science and Technology, 2015 Cold rolled sheets of a low carbon quenching and partitioning (Q&P) steel grade were subjected to heat treatment cycles, which were designed by dilatometric experiments and optimised with respect to the quenching temperature, partitioning temperature and
De Knijf, Dorien +3 more
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