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Ferrite-Martensite Band Formation During the Intercritical Annealing
Journal of Materials Engineering and Performance, 2015Microstructural evolution during the intercritical annealing at 740 and 770 °C for 120-900 s in a low-carbon low-alloy steel from the initial martensitic matrix was studied by electron microscopy equipped with energy dispersive x-ray spectroscopy and x-ray diffraction.
S. A. Etesami, M. H. Enayati
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Simulation of intercritical annealing in low-alloy TRIP steels
Steel Research, 2000A coupled thermodynamic/kinetic calculation of austenite formation during intercritical annealing of low-alloy TRIP steels is presented. The simulation was performed with the use of Dictra computational kinetics software, which employs a procedure for the numerical solution of the coupled diffusion equations involved, as well as mobility databases for ...
Anthony I. Katsamas +2 more
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Microstructural characterization of intercritically annealed low alloy PM steels
Materials & Design, 2007In this study, the applicability of intercritical annealing heat treatment, which is usually practiced to high strength low alloy ingot steels (HSLA), to low alloy powder metallurgy (PM) processed steels was investigated. With this heat treatment, it was intended to produce a dual-phase steel structure (ferrite + martensite) in PM steel.
Tekeli, SÜLEYMAN, Gural, AHMET
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Benefits of Intercritical Annealing in Quenching and Partitioning Steel
Metallurgical and Materials Transactions A, 2018Compared to the quenching and partitioning (Q&P) steel produced by full austenization annealing, the Q&P steel produced by the intercritical annealing shows a similar ultimate tensile stress but a larger tensile ductility. This property is attributable to the higher volume fraction and the better mechanical stability of the retained austenite after the
X. Wang, L. Liu, R. D. Liu, M. X. Huang
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Morphology and crystallography of austenite formed during intercritical annealing
Metal Science, 1984AbstractThe formation of austenite during intercritical annealing of ferrite–spheroidized cementite and ferrite–pearlite microstructures in low carbon steels has been investigated. It has been established that austenite which nucleates at a ferrite grain boundary does so with a Kurdjumov–Sachs crystallographic orientation relationship with one or both ...
U. R. Lenel, R. W. K. Honeycombe
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Thermodynamic Characterization in Intercritical Annealing Process for Dual-Phases Steels
Advanced Materials Research, 2012The theoretical prediction of chemical composition, the range of main elements and austenite alteration affected by intercritical annealing temperature were conducted by thermodynamic calculations, which agree with the experimental results. When fixing carbon content at 0.1% and calculating temperature at 1000K, to achieve α+γ phases without cementite ...
Fang Fang +3 more
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Microstructural characterization and impact toughness of intercritically annealed PM steels
Materials Science and Engineering: A, 2005Abstract In this study, atomized iron powder (Ancorsteel 1000) was mixed with 0.3 and 0.5 wt.% graphite powder. After sintering at 1120 °C, coarse and fine ferrite and martensite (dual phase) microstructures were produced through intercritical annealing heat treatment at different temperatures.
Tekeli, SÜLEYMAN, Gural, AHMET
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2023
This study systematically investigates the microstructural characteristics of Dual-Phase (DP) steels as a function of varied intercritical annealing conditions. The influence of specific intercritical annealing temperatures, holding times, and subsequent cooling rates on the formation, morphology, and distribution of ferrite and martensite phases in DP
Dr. Vasudendra H K, Dr. Alistair Finch
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This study systematically investigates the microstructural characteristics of Dual-Phase (DP) steels as a function of varied intercritical annealing conditions. The influence of specific intercritical annealing temperatures, holding times, and subsequent cooling rates on the formation, morphology, and distribution of ferrite and martensite phases in DP
Dr. Vasudendra H K, Dr. Alistair Finch
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Effect of Annealing Temperature on Martensite Start Temperature in Intercritical Region
2015In dual-phase steels, partial austenization may result in different volume amount of austenite depending on intercritical annealing temperature between Ac1 and Ac3 temperatures. The annealing temperature is also responsible of chemical composition and grain size of austenite. This study deals with the effect of intercritical annealing temperature on Ms
ERİŞİR, ERSOY, BİLİR, OĞUZ GÜRKAN
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Microstructure and mechanical properties of medium manganese steel in intercritical annealing
Materials Science and Technology, 2023A new type of cold-rolled medium manganese steel was investigated. The test steel was treated by Q&P process. With the increase in annealing temperature, the grain size gradually increases, the carbides dissolve progressively and the fine lath grains transform into massive or equiaxed grains.
Yan Feng +5 more
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