Results 31 to 40 of about 2,307,569 (203)

Combined Effects of Deformation and Undercooling on Isothermal Bainitic Transformation in an Fe-C-Mn-Si Alloy

open access: yesMetals, 2019
Both ausforming and transformation temperature affect the successive bainitic transformation and microstructure. The individual influence of each case is clear, whereas the combined effects are still unknown. Thermomechanical simulation and metallography
Hang Zou   +4 more
doaj   +1 more source

Incompleteness of bainite transformation in quenched and tempered steel under continuous cooling conditions

open access: yesJournal of Materials Research and Technology, 2020
The austenitic transformation kinetics of quenched and tempered 22CrMnNiMo steel was investigated by dilatometric measurement at different cooling rates of 0.1∼20 K/s.
F.-C. An   +5 more
doaj   +1 more source

Influence of Intermediate Annealing Treatment on the Kinetics of Bainitic Transformation in X37CrMoV5-1 Steel [PDF]

open access: yesMaterials, 2021
Intermediate annealing treatment (IAT) is a new process that accelerates the bainitic transformation in steels. This stimulation is crucial, especially in the prolonged production of nanobainitic steels. Among other recognised methods, it seems to be an effective and economical process. However, there are very few research works in this area.
Grzegorz Łukaszewicz   +4 more
openaire   +2 more sources

An In-Situ LSCM Study on Bainite Formation in a Fe-0.2C-1.5Mn-2.0Cr Alloy

open access: yesMetals, 2018
Direct microscopic observation of the isothermal bainite evolution in terms of nucleation events, the location of the nuclei, as well as their growth is very valuable for the refinement of models predicting the kinetics of bainite transformation. To this
Salil Sainis   +3 more
doaj   +1 more source

Method to Evaluate the Kinetics of Bainite Transformation in Low-Temperature Nanobainitic Steel Using Thermal Dilatation Curve Analysis

open access: yesMetals, 2017
The aim of this work was to develop a method to evaluate the kinetics of bainite transformation by theoretical deduction and thermal dilatation curve analysis. A Gleeble-3500 thermomechanical simulator and dilatometer (DIL805A) were employed to study the
Yaowen Xu   +4 more
doaj   +1 more source

Application of the cellular automata method to modelling lower bainite in steels [PDF]

open access: yesComputer Methods in Materials Science, 2012
Cellular automata model for bainitic transformation in steels is presented in the paper. Discrete character of the CA method allowed to reproduce formulation of carbides in the bainitic ferrite.
Grzegorz Jabłoński   +2 more
doaj   +1 more source

Alloy Qualification for Producing Quench and Tempered Plate Steels with Extra‐Heavy Gage

open access: yessteel research international, EarlyView.
This study develops alloy concepts for ultraheavy steel plates (>100 mm) with ≥690 MPa yield strength. Through dilatometry and Jominy testing, the effects of Mo, Ni, and B on hardenability are quantified. A synergy between 0.5% Mo and 0.5%–1.0% Ni ensures core strength at low cooling rates, while boron microalloying suppresses ferrite and promotes ...
Xabier Azpeitia   +5 more
wiley   +1 more source

Effect of pearlitic and bainitic initial microstructure on cementite spheroidization in rail steels

open access: yesJournal of Materials Research and Technology, 2023
To improve the performance of the rails and wheels for the railway industry, new microstructures need to be researched. Nevertheless, the soft region observed in the weld heat-affected zone (HAZ), caused by the spheroidization of cementite, leads to ...
Henrique Boschetti Pereira   +8 more
doaj   +1 more source

Effect of Double Annealing on the Microstructure and Mechanical Properties of a Medium Manganese Steel

open access: yessteel research international, EarlyView.
A double intercritical annealing strategy is proposed to tailor the multiphase microstructure and mechanical response of a medium‐Mn steel. The treatment produces an ultrafine mixture of ferrite, martensite and multiple austenite populations with graded thermal and mechanical stability, formed through austenite reversion and controlled retransformation.
Mattia Franceschi   +3 more
wiley   +1 more source

Effect of Thermomechanical Processing Parameters on Bainite Transformation Kinetics, Microstructure, and Intervariant Boundary Network Characteristics

open access: yes, 2022
This study investigated how thermomechanical processing parameters and routes affect the bainitic transformation of kinetic and microstructure-mechanical properties of carbide-free bainitic steel.
Abhishek Kumar (156479)
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