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Carbon content of bainite ferrite in 40CrMnSiMoV steel
Materials Chemistry and Physics, 2009A refined method for analysing X-ray diffraction spectrum was used to determine the carbon content of bainite ferrite in 40CrMnSiMoV steel. The supersaturated carbon concentration linearly decreases with increase of isothermal holding time at 310 °C due to the carbon repartition and carbide precipitation.
Kang, M.K. +5 more
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Metals and Materials International, 2019
In this work, low carbon low alloy steel specimens were subjected to suitable heat treatment schedules to develop ferrite–pearlite (FP), ferrite–bainite (FB) and ferrite–martensite (FM) microstructures with nearly equal volume fraction of hard second phase or phase mixture.
Saroj Kumar Basantia +3 more
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In this work, low carbon low alloy steel specimens were subjected to suitable heat treatment schedules to develop ferrite–pearlite (FP), ferrite–bainite (FB) and ferrite–martensite (FM) microstructures with nearly equal volume fraction of hard second phase or phase mixture.
Saroj Kumar Basantia +3 more
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Russian Metallurgy (Metally), 2016
The fracture strength and the sensitivity to delayed fracture of the pipes in oil-trunk pipelines that are made of ferritic–bainitic and bainitic steels are studied. The results of modeling of the delayed brittle fracture of pipe steel during a simultaneous action of mechanical stresses and a corrosive medium are presented.
V. N. Zikeev +4 more
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The fracture strength and the sensitivity to delayed fracture of the pipes in oil-trunk pipelines that are made of ferritic–bainitic and bainitic steels are studied. The results of modeling of the delayed brittle fracture of pipe steel during a simultaneous action of mechanical stresses and a corrosive medium are presented.
V. N. Zikeev +4 more
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On the Microstructural Basis of Cleavage Fracture Initiation in Ferritic and Bainitic Steels
Journal of Engineering Materials and Technology, 1984The microstructural basis of the critical tensile stress criterion of cleavage fracture is discussed. It is shown that cleavage can be carbide induced in bainitic steels as well as in ferritic steels. The plastic work expended in brittle crack propagation is shown to be somewhat smaller for bainitic steels than for ferritic steels.
Wallin, Kim +3 more
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Modeling the austenite decomposition into ferrite and bainite
2009Novel advanced high-strength steels such as dual-phase (DP) and transformation induced plasticity (TRIP) steels, are considered as promising materials for new generation of lightweight vehicles. The superior mechanical properties of these steels, compared to classical high strength steels, are associated with their complex micro structures. The desired
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On the nucleation of cementite on bainitic ferrite–austenite interphase boundaries
Philosophical Magazine, 2014Among all possible variants of the Isaichev orientation relationship between cementite and ferrite, a single major cementite variant has been observed to appear in bainite. Interphase boundary nucleation of cementite on ferrite–austenite semi-coherent interfaces is considered a plausible reason for this observation.
Raheleh Hadian, Gary R. Purdy
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On the ferrite and bainite transformation in isothermally deformed 22MnB5 steels
Materials Science and Engineering: A, 2012Abstract The effect of austenite deformation on ferrite transformation and bainite transformation is reviewed in this paper. In the ferrite zone on continuous cooling transformation (CCT) diagram of 22MnB5 steel, isothermal tensile tests were carried out in various deformation conditions on Gleeble 3800 thermo-mechanical machine, and microstructures ...
Junying Min +3 more
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Do bainitic and Widmanstätten ferrite grow with different mechanisms?
Scripta Materialia, 2010Caballero et al. recently presented new evidence for different growth mechanisms of Widmanstatten and bainitic ferrite. Their argument was based on Zener's hypothesis of diffusionless growth of bainitic ferrite. It is now demonstrated that Bhadeshia's model, based on Zener's hypothesis, predicts that some of the new measurements, claimed to fall above ...
M. Hillert, A. Borgenstam, J. Ågren
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Materials Chemistry and Physics, 2015
Abstract It is well documented that much of the strength and hardness of nanostructured, carbide free bainitic steels come from the very small thickness of bainitic ferrite plates. In the current work, the Williamson–Hall method has been used to determine the bainitic ferrite plate thickness.
M.N. Yoozbashi, S. Yazdani
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Abstract It is well documented that much of the strength and hardness of nanostructured, carbide free bainitic steels come from the very small thickness of bainitic ferrite plates. In the current work, the Williamson–Hall method has been used to determine the bainitic ferrite plate thickness.
M.N. Yoozbashi, S. Yazdani
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Formation of austenite from a mixture of bainitic ferrite and austenite
Materials Chemistry and Physics, 1993Abstract In this work, the isothermal reaustenitization on a chemically homogeneous weld metal has been investigated with the purpose of studying the general trend of the kinetics. For this reheated weld metal, bainitic ferrite can form from small-grain austenite.
J.R. Yang, C.Y. Huang
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