Results 11 to 20 of about 15,105 (254)

Effect of martensite pre-quenching on bainite transformation kinetics, martensite/bainite duplex microstructures, mechanical properties and retained austenite stability of GCr15 bearing steel

open access: yesJournal of Materials Research and Technology, 2021
In this work, effect of martensite pre-quenching on the subsequent bainite transformation kinetics of GCr15 bearing steel has been investigated by means of dilatometry.
Xiaohui Lu   +4 more
doaj   +1 more source

Effect of isothermal quenching on microstructure and hardness of GCr15 steel

open access: yesJournal of Materials Research and Technology, 2021
Through hardness measurement and microstructure observation, the effect of isothermal quenching on the bainite transformation, the size and area fraction of carbides in GCr15 steel was studied. Results show that, at the solid solution temperature of 860 °
Y. Su   +5 more
doaj   +1 more source

Crack propagation behavior of ER8 wheel steel containing upper bainite

open access: yes工程科学学报, 2020
In recently years, high-speed and heavy-haul railway technology has been rapidly developed and widely used in China. Pearlite steel is usually used in railway wheels, and its structure is composed of pearlite and ferrite.
Qian LI   +4 more
doaj   +1 more source

Effect of isothermal and pre-transformation temperatures on microstructure and properties of ultrafine bainitic steels

open access: yesJournal of Materials Research and Technology, 2021
The effects of isothermal and pre-transformation temperatures on the microstructure and mechanical properties of ultrafine bainitic steels are investigated and theoretically analyzed by using optical microscopy, scanning electron microscopy, transmission
Chengcong Huang   +4 more
doaj   +1 more source

Towards the ab initio based theory of the phase transformations in iron and steel [PDF]

open access: yes, 2017
Despite of the appearance of numerous new materials, the iron based alloys and steels continue to play an essential role in modern technology. The properties of a steel are determined by its structural state (ferrite, cementite, pearlite, bainite ...
Gornostyrev, Yu. N.   +2 more
core   +7 more sources

Effect of Bainite Volume Fraction on Deformability of Mesostructures for Ferrite/Bainite Dual-Phase Steel

open access: yesAdvances in Materials Science and Engineering, 2020
To obtain high strength and excellent deformability for ferrite/bainite dual-phase (F/B DP) pipeline steel for gas pipelines based on strain-based design, the volume fractions of ferrite and bainite should be considered first.
Gui-ying Qiao   +4 more
doaj   +1 more source

Review on the prediction of residual stress in welded steel components [PDF]

open access: yes, 2020
Residual stress after welding has negative effects on the service life of welded steel components or structures. This work reviews three most commonly used methods for predicting residual stress, namely, empirical, semi-empirical and process simulation ...
Abdel Wahab, Magd   +2 more
core   +1 more source

Bainite transformation under the effect of large stress in a carbide-free bainite steel

open access: yesJournal of Materials Research and Technology, 2023
The effects of large stress on bainite transformation and microstructure were investigated by dilatometry, SEM and EBSD. The results show that the effect of large stress on bainite transformation includes two parts: mechanical driving force and prior ...
Mingxing Zhou   +5 more
doaj   +1 more source

Nanostructured bainite [PDF]

open access: yesProceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2009
An alloy system based on iron is described in which it has been possible to create a high density of interfaces by heat treatment alone. The resulting structure consists of a mixture of slender platelets of bainitic ferrite, just 20–40 nm in thickness, embedded in a matrix of carbon-enriched austenite.
openaire   +1 more source

Effect of bainite morphology on deformation compatibility of mesostructure in ferrite/bainite dual-phase steel: Mesostructure-based finite element analysis

open access: yesMaterials & Design, 2019
Ferrite/bainite (F/B) dual-phase pipeline steels with excellent balance of strength, ductility, and toughness have been broadly applied in oil and gas pipeline transmission.
Zhong-tao Zhao   +5 more
doaj   +1 more source

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