Results 11 to 20 of about 342,756 (158)
Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2009 An alloy system based on iron is described in which it has been possible to create a high density of interfaces by heat treatment alone. The resulting structure consists of a mixture of slender platelets of bainitic ferrite, just 20–40 nm in thickness, embedded in a matrix of carbon-enriched austenite.
BY H. K. D. H. Bhadeshia, H. Bhadeshia
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Strength and toughness of clean nanostructured bainite [PDF]
Materials Science and Technology, 2017 A nanostructured steel has been produced using a clean steel-making technique. The mechanical properties have been comprehensively characterised. The maximum strength of the material recorded was 2.2 GPa at yield, with an ultimate tensile strength of 2.5 GPa, accompanied by a Charpy impact energy of 5 J, achieved by heat treatment to refine the prior ...
M. J. Peet +5 more
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Journal of Materials Research and Technology, 2020 The interplay between ausforming strain level applied prior to austempering step and bainite transformation kinetic as well as plastic deformation mechanism of nanostructured bainitic steel was essentially investigated.
Hui Guo +3 more
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The Microstructure Transformations and Wear Properties of Nanostructured Bainite Steel with Different Si Content. [PDF]
Materials (Basel), 2022 Nanostructured bainite (NB) bearing steel has excellent strength and ductility combinations, which can improve the fatigue life and wear resistance of bearing steel in harsh conditions.
Fu L +7 more
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Dry rolling/sliding wear of nanostructured bainite [PDF]
Wear, 2014 Abstract The abrasive wear of carbide-free bainitic steel under dry rolling/sliding conditions has been studied. It is demonstrated that this nanostructure, generated by isothermal transformation at 200 °C, has a resistance to wear that supersedes that of other carbide-free bainitic steels transformed at higher temperatures.
S. Das Bakshi +3 more
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Compositional design of high strength nanostructured bainite
Materials Research Express, 2018 Strength of carbide-free bainitic steels primarily depends on the thickness of bainitic ferrite and its volume fraction in the microstructure. The morphology and volume fraction of phases formed in bainitic transformation are governed by the steel's composition and transformation temperature.
Avanish Kumar +2 more
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Improvement of Strength-Toughness Combination in Nanostructured Bainite
Procedia Structural Integrity, 2018 Abstract The present study makes an effort to improve strength-toughness combination of a high carbon carbide free nanostructured bainite by investigating the effect of content, size and morphology of constituent phases when austempered at 250-350°C.
Avanish Kumar, Aparna Singh
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Metallurgical Characterization of Welded Joint of Nanostructured Bainite: Regeneration Technique versus Post Welding Heat Treatment. [PDF]
Materials (Basel), 2020 One of the main limitations in application of nanostructured carbide-free bainite as a construction material is the difficulty of joining. This research presents a structural characterization of welded joints of medium carbon 55Si7 grade steel after the ...
Królicka A +4 more
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Synchrotron analysis of toughness anomalies in nanostructured bainite
Acta Materialia, 2016 AbstractHigh-resolution synchrotron X-ray diffraction has been used to characterise the notch root regions of Charpy impact test specimens of a superbainitic steel, both before and after loading. The changes in the volume fraction of austenite induced by the application of a three-point-bending load were quantified.
Fielding, L.C.D. +8 more
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Anomalies in carbon concentration determinations from nanostructured bainite [PDF]
Materials Science and Technology, 2015 There are large discrepancies in the measured concentrations of carbon in the ferrite and austenite within nanostructured bainite and carbide-free bainitic steels in general. The concentrations are usually measured on the basis of lattice parameters determined using X-ray diffraction, lattice imaging in transmission microscopy, or using the atom probe
H. Bhadeshia
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