Results 11 to 20 of about 1,418 (199)

The austenite to polygonal ferrite transformation in low-alloy steel: multi-phase-field simulation

open access: yesJournal of Materials Research and Technology, 2023
The austenite to ferrite phase transformation is a critical structural transformation in steel production, where the morphology and grain size of ferrite substantially influence the mechanical properties of steel materials.
Shaojie Lv   +8 more
doaj   +1 more source

Effect of Heterogeneous Microstructure on Refining Austenite Grain Size in Low Alloy Heavy-Gage Plate

open access: yesMetals, 2020
The present work introduces the role of heterogeneous microstructure in enhancing the nucleation density of reversed austenite. It was found that the novel pre-annealing produced a heterogeneous microstructure consisting of alloying elements-enriched ...
Shengfu Yuan   +6 more
doaj   +1 more source

The Effect of Direct Strip Casting on the Kinetics of Phase Transformation of a Dual Phase Steel

open access: yesMetals, 2022
A dual phase steel has been produced directly from the liquid under conditions that simulate direct strip casting and thin slab casting. The kinetics of polygonal ferrite formation during the inter-critical anneal were quantified using the JMAK approach,
Nam Mai   +2 more
doaj   +1 more source

Effect of cold deformation on the bainite transformation kinetics, microstructural evolution and mechanical properties of austempered GCr15 bearing steel

open access: yesJournal of Materials Research and Technology, 2023
In this work, the effect of prior cold deformation on the bainite transformation kinetics of austempered GCr15 bearing steel was investigated by means of dilatometry.
Xiaohui Lu   +5 more
doaj   +1 more source

Digital Reconstruction of Engineered Austenite: Revisiting Effects of Grain Size and Ausforming on Variant Selection of Martensite

open access: yesMetals, 2022
In this work, the variant selection of martensite in a stainless maraging steel was investigated by electron backscattering diffraction and a new protocol of parent phase reconstruction.
Cheng-Yao Huang   +2 more
doaj   +1 more source

Correlative microscopy for quantification of prior austenite grain size in AF9628 steel

open access: yesMaterials Characterization, 2020
Abstract The characterization of prior austenite grain size is important for an understanding of the microstructure-property relationships in steels. In this study, the prior austenite grain boundaries (PAGBs) were delineated in a low alloy high performance steel, AF9628, with two different methods: (i) conventional approach via etching, followed by ...
V. Sinha   +4 more
openaire   +2 more sources

ON THE EFFECT OF PRIOR AUSTENITE GRAIN SIZE ON NEAR-THRESHOLD FATIGUE CRACK GROWTH [PDF]

open access: yesScripta Metallurgica, 1977
It is generally accepted that the fatigue or endurance strength of planar slip materials, such as steel and brass, is increased by refining the grain size, whereas in wavy slip materials, such as pure copper and pure aluminum, the fatigue strength is unaffected.
Carlson, M. F., Ritchie, R. O.
openaire   +4 more sources

Deformation behavior of retained austenite and its effect on plasticity based on in-situ EBSD analysis for transformable ferritic stainless steel

open access: yesJournal of Materials Research and Technology, 2022
The relationship of deformation behavior of retained austenite with its characteristics for transformable ferritic stainless steel by Q&P treatment was systematically investigated using in-situ EBSD analysis.
Fei Gao   +4 more
doaj   +1 more source

Effect of γ→α Phase Transformation on Refining Austenite Grains of Microalloyed Steel in Continuous Casting by Simulation

open access: yesHigh Temperature Materials and Processes, 2016
The formation of coarse prior austenite grain is a key factor to promote transverse crack, and the transverse crack susceptibility can be reduced by refining the austenite grain size.
Liu Jiang   +4 more
doaj   +1 more source

Influence of Austenite Grain Size on Mechanical Properties after Quench and Partitioning Treatment of a 42SiCr Steel

open access: yesMetals, 2019
This paper examines how the initial austenite grain size in quench and partitioning (Q-P) processes influences the final mechanical properties of Q-P steels.
Sebastian Härtel   +7 more
doaj   +1 more source

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