Journal ArticleDOI
Effect of prior austenite grain size on the tensile properties and fracture toughness of nano-structured bainite
TLDR
In this paper , the effect of two different prior austenite grain size (PAGS) on the microstructure development and in turn the tensile properties and fracture toughness of nano-structured bainitic steels was examined.About:
This article is published in Materials Characterization.The article was published on 2022-08-01. It has received 8 citations till now. The article focuses on the topics: Bainite & Fracture toughness.read more
Citations
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Journal ArticleDOI
Research on the mechanism of Cu addition on the grain boundary characteristics and toughness in CGHAZ of low carbon low alloy steel
Journal ArticleDOI
Unforeseen influence of the prior austenite grain size on the mechanical properties of a carbide-free bainitic steel
Feiyu Zhao,Lucia Morales-Rivas,Qian Yu,Guodong Wang,Francisca García Caballero,David San-Martin +5 more
TL;DR: In this article , various hot-rolling schedules have been employed to obtain microstructures with three different prior austenite grain sizes (PAGSs): coarse (CG = 45 ± 5 μm), medium (MG = 18 ± 4 μm) and fine (FG = 8 ± 2 μm).
Journal ArticleDOI
Impact of Multi-Level Microstructures on the Strength and Yield Ratio of Extra-Thick Ultra-High-Strength Steel
Journal ArticleDOI
Role of Metastable Austenite on Crack Resistance of Quenching and Partitioning Sheet Steels
Riming Wu,Yi Xu +1 more
TL;DR: In this paper , the role of retained austenite on the crack resistance of advanced quenching and partitioning (Q&P) sheet steels is investigated, and the fracture toughness of Q&P steels, critical J-integral values Jc, were 402.97 kJm−m−2 (notch radius = 0.18 mm) and 584.11 kJ·m−v−v
Journal ArticleDOI
Role of Carbon Content on Microstructure Evolution and Impact Toughness in Coarse-Grained Heat-Affected Zone of High-Strength Steel
TL;DR: In this article , the effect of carbon content in the base metals of high-strength steel on the microstructure and impact toughness of simulated welding focusing on a coarse-grained heat-affected zone (CGHAZ) at different heat inputs was systematically investigated by using scanning electron microscopy (SEM) and electron back-scattering diffraction (EBSD).
References
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Journal ArticleDOI
Very strong bainite
TL;DR: A steel with an ultimate tensile strength of 2500 MPa, a hardness at 600-670 HV and toughness in excess of 30-40 MPa/m 1/2 is the result of exciting new developments with bainite as discussed by the authors.
Journal ArticleDOI
Bainite in silicon steels: new composition–property approach Part 1
TL;DR: In this article, a quantitative relationship between the composition and some important mechanical properties of silicon containing steels, which can be transformed isothermally to an aggregate of bainitic ferrite and carbon enriched retained austenite only, has been developed.
Journal ArticleDOI
Acceleration of Low-temperature Bainite
TL;DR: In this article, the authors report methods for accelerating the rate of reaction without compromising strength, and show that bainitic ferrite plates produced by transformation at low temperatures can be as thin as 20 nm with a hardness in excess of 650 HV.
Journal ArticleDOI
Development of Hard Bainite
TL;DR: In this paper, it was demonstrated that in a high-carbon steel where carbide precipitation is suppressed, bainite can be obtained by isothermal transformation at temperatures as low as 200°C.
Journal ArticleDOI
The influence of stacking fault energy on the microstructural and strain-hardening evolution of Fe–Mn–Al–Si steels during tensile deformation
TL;DR: In this paper, the authors investigated the influence of stacking-fault energy (SFE) on the microstructural and strain-hardening evolution of three TRIP/TWIP alloys.
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