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Mechanical Properties of Intercritically Annealed X80 Line Pipe Steels
Metallurgical and Materials Transactions A, 2021Microalloyed low-carbon steels are used for line pipe applications as they combine high strength and acceptable fracture toughness with good weldability. During multi-pass welding, the strength and impact toughness of the material in the heat-affected zone (HAZ) is potentially degraded, in particular the regions where the thermal fields from multi-pass
Madhumanti Mandal +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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Steel Research International, 2022
The influence of cooling rate and intercritical annealing temperature on austenite stability and mechanical properties of cold rolled Fe‐11Mn‐4Al‐0.2C steel are elucidated.
Z. Cai +6 more
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The influence of cooling rate and intercritical annealing temperature on austenite stability and mechanical properties of cold rolled Fe‐11Mn‐4Al‐0.2C steel are elucidated.
Z. Cai +6 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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Phase-Field Modeling for Intercritical Annealing of a Dual-Phase Steel
Metallurgical and Materials Transactions A, 2014A phase-field model has been developed to describe microstructure evolution during intercritical annealing of a commercial DP600 dual-phase steel. The simulations emphasize the interaction between ferrite recrystallization and austenite formation from a cold-rolled pearlite/ferrite microstructure at high heating rates.
Benqiang Zhu, Matthias Militzer
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Mn Diffusion at Early Stage of Intercritical Annealing of 5Mn Steel
Journal of Iron and Steel Research International, 2015Mn distribution and austenite morphology at the early stage of intercritical annealing of 5Mn steel were investigated. It was experimentally demonstrated that a newly formed 20 nm-thick austenite was formed without the partitioning of Mn. The elemental analysis confirmed that the growth of austenite should be controlled by the diffusion of C prior to ...
Xi-nan Luo +5 more
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Intercritical annealing as a means of improving impact properties of plate steel
Metallurgical Transactions A, 1988The influence of long time intercritical heat-treatments (720 to 750 °C) on the impact and tensile properties of ferrite/pearlite steels has been examined. Intercritical annealing enables Mn to diffuse to the α/ γ boundaries and refine the grain-boundary carbides on cooling to room temperature.
B. Mintz, J. Kolahi-Aval
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Formation of Austenite During Intercritical Annealing of Dual-Phase Steels
Metallurgical Transactions A, 1981The formation of austenite during intercritical annealing at temperatures between 740 and 900 °C was studied in a series of 1.5 pct manganese steels containing 0.06 to 0.20 pct carbon and with a ferrite-pearlite starting microstructure, typical of most dual-phase steels.
G. R. Speich +2 more
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Steel Research, 1990
The objective of this investigation was to study the effect of the intercritical temperature and percentage of cold‐deformation on the kinetics auf austenite formation during the intercritical annealing in the alpha + gammy (α + γ) phase field of the iron‐carbon phase diagram.
Ismail A. El‐Sesy +2 more
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The objective of this investigation was to study the effect of the intercritical temperature and percentage of cold‐deformation on the kinetics auf austenite formation during the intercritical annealing in the alpha + gammy (α + γ) phase field of the iron‐carbon phase diagram.
Ismail A. El‐Sesy +2 more
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Improving the Ductility of Quenching and Partitioning Steel by Cyclic Intercritical Annealing
steel research internationalThe influences of cyclic intercritical annealing on the microstructure and mechanical properties of cold‐rolled and martensite‐based quenching and partitioning (CR/M‐QP) steels were studied. It was found that with increasing annealing cycles, the ductility of CR/M‐QP steel improved significantly without a notable decease in strength.
Yali Zhang +7 more
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