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Effects of Controlled-Release Fertilizer Application Rate on Growth, Physiological Traits, and Chlorophyll Fluorescence Responses of <i>Paeonia delavayi</i> Seedlings. [PDF]

Plants (Basel)
Tong H, He G, Li S, Huang Y, Pan Y, Wang J.   +5 more
europepmc   +1 more source

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Carbon partitioning during quenching and partitioning heat treatment accompanied by carbide precipitation

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 ...
Yuki Toji, Goro Miyamoto, Dierk Raabe
exaly   +3 more sources

On the role of Manganese Partitioning in Metastable Austenite by Quenching and Partitioning Treatment

steel research international, 2023
With the aim to study the role of “frozen” concentration gradient of manganese (Mn) element in stability of retained austenite (RA) with multiple‐stage martensite transformation, a series of intercritical annealing (IA) temperatures is conducted before quenching and partitioning (Q&P) treatment.
Ri-Ming Wu, Yi Xu, Kui-Cen Li, Wei Li
openaire   +1 more source

Quenching and Partitioning of Plate Steels: Partitioning Design Methodology

Metallurgical and Materials Transactions A, 2019
Quenching and partitioning (Q&P), a new heat treatment concept to develop high-strength martensitic microstructures with retained austenite (RA), has been implemented industrially to make sheet products. This process is also of interest for thicker plate products, to employ transformation-induced plasticity to enhance toughness and/or wear resistance ...
R. A. Stewart, J. G. Speer, B. G. Thomas, E. De Moor, A. J. Clarke   +4 more
openaire   +1 more source

Comparison of the Impact Wear Performances of Quenching and Partitioning and Quenching and Tempering Steels

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, Xiaolong Gan, Man Liu, Junyu Tian, Zhenye Chen, Guang Xu   +5 more
openaire   +1 more source

Microstructural Evolution and Dynamic Partitioning Behavior in Quenched and Partitioned Steels

steel research international, 2017
Direct quenching and dynamic partitioning (DQ&P) process is a promising approach and there continues to be lack of understanding concerning cooling condition in the hot strip rolling line. Here, the authors have simulated DQ&P process in low carbon Si–Mn steel using a thermal simulator.
Yun‐Jie Li, Dong Chen, Xiao‐Lei Li, Jian Kang, Guo Yuan, R. Devesh Kumar Misra, Guo‐Dong Wang   +6 more
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Carbon and strain partitioning in a quenched and partitioned steel containing ferrite

Acta Materialia, 2019
Abstract 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, Dirk Ponge, Wenjun Lu, Yunbo Xu, Xiaolong Yang, Xi Rao, Di Wu, Dierk Raabe   +7 more
openaire   +2 more sources