Influence of grain boundary carbide thickness and grain size on cleavage fracture strength and Charpy impact behaviour of steels

Mintz, B.; Tajik, S.; Kavishe, F. P. L.; Baker, T. J.

doi:10.1179/mst.1991.7.11.1005

Cited by 7 publications

(2 citation statements)

References 6 publications

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“…These modifications were confirmed in further work by Bingley. 13 On the other hand, Mintz et al 14 found that using their experimental average grain size and the average value of thickness of the 10 largest carbides from a total of 100 carbide measurements, the original Petch model 11 gave a better prediction for cleavage strength than that of Almond et al 10 Both the Petch and Almond models showed that grain size and carbide thickness influence both the Charpy V notch ITT and the cleavage fracture strength. In his model, Petch 11 considered that fracture starts with a dislocation pile-up on a slip plane, followed by a catastrophic collapse of the pile-up as an avalanche of dislocations into a nonequilibrium crack.…”

Section: Introductionmentioning

confidence: 99%

Effect of morphology of martensite–austenite phase on fracture of weld heat affected zone in vanadium and niobium microalloyed steels

Baker

2010

Materials Science and Technology

145

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This version is available at https://strathprints.strath.ac.uk/8090/ Strathprints is designed to allow users to access the research output of the University of Strathclyde. Unless otherwise explicitly stated on the manuscript, Copyright © and Moral Rights for the papers on this site are retained by the individual authors and/or other copyright owners. Please check the manuscript for details of any other licences that may have been applied. You may not engage in further distribution of the material for any profitmaking activities or any commercial gain. You may freely distribute both the url (https://strathprints.strath.ac.uk/) and the content of this paper for research or private study, educational, or not-for-profit purposes without prior permission or charge.Any correspondence concerning this service should be sent to the Strathprints administrator: strathprints@strath.ac.ukThe Strathprints institutional repository (https://strathprints.strath.ac.uk) is a digital archive of University of Strathclyde research outputs. It has been developed to disseminate open access research outputs, expose data about those outputs, and enable the management and persistent access to Strathclyde's intellectual output. Κεψ WορδσΧοαρσε γραινεδ ηεατ αφφεχτεδ ζονε, ιντερχριτιχαλλψ ρεηεατεδ χοαρσε γραινεδ ηεατ αφφεχτεδ ζονε, mαρτενσιτε−αυστενιτε πηασε, ηεατ− αφφεχτεδ− ζονε τουγηνεσσ, παρτιχλε δεβονδινγ.Χορρεσπονδινγ αυτηορ, ε−mαιλ νεϖιλλε.βακερ≅στρατη.αχ.υκ

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Section: Introductionmentioning

confidence: 99%

Effect of morphology of martensite–austenite phase on fracture of weld heat affected zone in vanadium and niobium microalloyed steels

Baker

2010

Materials Science and Technology

145

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“…It is generally agreed that McMahon and Cohen 317 were among the first to appreciate the importance of the role of carbide films at grain boundaries in the fracture process in carbon steels. Detailed measurements on carbide film parameters were undertaken by Mintz et al 318,319 to obtain statistically significant quantitative data to test the models of Smith, 320 Almond et al 321 and Knott and Curry. 322 These data showed that, over the grain size range of 1–14mm − 1/2 ( d = 10–500 μm), the change in T c was 160°C, whereas the greatest change that can be produced by changes in carbide thickness alone was 60°C.…”

Section: Strength Toughness and Ductilitymentioning

confidence: 99%

Microalloyed steels

Baker

2016

Ironmaking & Steelmaking

166

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This review considers the compositions, the main process routes, microstructure, and structural properties of microalloyed steels. The background and brief history are followed by sections dealing with aspects of precipitation which control grain size and dispersion strengthening in ferrite- pearlite steels, the approaches to modelling thermomechanical processing and the influence of multiple additions of transition metals on properties. High strength acicular ferrite/bainite steels used for linepipe are included and lead to super bainite steels. Around 12% of the world strip production is processed by the thin slab direct charging route, which is considered in some detail. The weldability of microalloyed steels now embraces joining using friction stir welding, which is discussed. Over the years, many approaches have been developed to predict the structural properties of microalloyed steels. They comprise several quantifiable microstructural features including atom clusters, relatively recently identified through atom probe tomography. A comprehensive collection of references is provided

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Prediction of Charpy impact toughness of steel weld heat-affected zones by combined micromechanics and stochastic fracture model – Part I: Model presentation

Kunigita

Aihara

Kawabata

et al. 2020

Engineering Fracture Mechanics

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Influence of grain boundary carbide thickness and grain size on cleavage fracture strength and Charpy impact behaviour of steels

Cited by 7 publications

References 6 publications

Effect of morphology of martensite–austenite phase on fracture of weld heat affected zone in vanadium and niobium microalloyed steels

Effect of morphology of martensite–austenite phase on fracture of weld heat affected zone in vanadium and niobium microalloyed steels

Microalloyed steels

Prediction of Charpy impact toughness of steel weld heat-affected zones by combined micromechanics and stochastic fracture model – Part I: Model presentation

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