Results 31 to 40 of about 3,994,091 (231)

Kinetic Model of Isothermal Bainitic Transformation of Low Carbon Steels under Ausforming Conditions

open access: yesAlloys, 2022
Carbide-free bainitic steels show attractive mechanical properties but are difficult to process because of the sluggish phase transformation kinetics. A macroscopic model based on the classical nucleation theory in conjunction with the modified Koistinen–
Theerawat Kumnorkaew   +3 more
semanticscholar   +1 more source

In-situ observation of phase transformation during heat treatment process of high-carbon bainitic bearing steel

open access: yesJournal of Materials Research and Technology, 2022
Phase transformation during austenitizing process and heat treatment process under slow cooling of high-carbon bainitic bearing steel is still unclear. Direct nano-scale microscopic observation and in-situ X-ray diffraction investigations have been used ...
Dongyun Sun   +6 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

Characterisation and Development of Nanostructured, Ultrahigh Strength, and Ductile Bainitic Steels [PDF]

open access: yes, 2006
The purpose of the present work was to characterise and further develop a novel nanostructured type of bainitic steel. Three chemical compositions were considered with different concentrations of Al and Co.
Sherif MY, Sherif, Mohamed
core   +2 more sources

Stability of retained austenite and work hardening behavior in ultra-fine medium carbon bainitic steel

open access: yesJournal of Materials Research and Technology, 2023
The effect of retained austenite stability on plastic deformation was investigated by stepwise tensile test of medium carbon steel material at two different bainite isothermal temperatures below or above the martensite start (Ms) point.
Tingting He   +5 more
doaj   +1 more source

Three-Dimensional Observation of Upper Bainite in the Initial Stage of Transformation in 0.4 wt%C TRIP Steel

open access: yesMetals, 2023
Three-dimensional microstructures of bainitic ferrites and prior austenite grains (PAGs) were observed in the initial stage of upper bainite transformation by using a serial sectioning technique and orientation analysis by electron back scattering ...
Shotaro Jimbo, Shoichi Nambu
doaj   +1 more source

Modeling of bainitic phase transformation [PDF]

open access: yesPAMM, 2010
AbstractIn this work, we present a macroscopic material model for simulation of austenite to bainite and of austenite to martensite transformations accompanied by transformation‐induced plasticity (TRIP), which is an important phenomenon in metal forming processes.
Andreas Schneidt, Rolf Mahnken
openaire   +1 more source

Effect of austempering temperature on the microstructure and wear resistance of ultrafine bainitic steel

open access: yes工程科学学报, 2018
Ultrafine bainitic steels, which are derived from nanostructured carbide-free bainitic steels, exhibit a remarkable combination of ultra-high strength and toughness together with excellent wear resistance. Their excellent integrated mechanical properties
ZHANG Chao   +4 more
doaj   +1 more source

Modeling Bainitic Transformations during Press Hardening [PDF]

open access: yesMaterials, 2021
We revisit recent findings on experimental and modeling investigations of bainitic transformations under the influence of external stresses and pre-strain during the press hardening process. Experimentally, the transformation kinetics in 22MnB5 under various tensile stresses are studied both on the macroscopic and microstructural level. In the bainitic
Mingxuan Lin   +5 more
openaire   +4 more sources

Transferring Nanoscale Bainite Concept to Lower C Contents: A Perspective

open access: yesMetals, 2017
The major strengthening mechanisms in bainitic steels arise from the bainitic ferrite plate thickness rather than the length, which primarily determines the mean free slip distance.
Carlos Garcia-Mateo   +7 more
doaj   +1 more source

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