Results 21 to 30 of about 19,906 (261)
Journal of Thermal Analysis and Calorimetry, 2022 The work presents results on the effect of prior martensite formation on bainite transformation kinetics in a 3% medium-Mn multiphase steel. The material was subjected to two isothermal holding temperatures: 400 °C (without martensite) and 350 °C (with ...
M. Morawiec +4 more
semanticscholar +1 more source
Effects of Isothermal Temperature on Dislocation Density in Bainite Transformation of 4140 Steel
Materials, 2022 To relate the bainitic microstructures to the mechanical properties of steel, the average dislocation density needs to be determined. Using X-ray diffraction and diffraction line broadening analysis, this research quantifies the average dislocation ...
Jian Zhu, G. Barber, Xi-Chen Sun
semanticscholar +1 more source
Effect of isothermal quenching on microstructure and hardness of GCr15 steel
Journal 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
Journal of Thermal Analysis and Calorimetry, 2022 This work presents insights into the manganese influence on the driving force and bainite transformation kinetics. Three different medium-Mn steels were subjected to theoretical calculations and dilatometric study in order to determine the Mn impact on ...
M. Morawiec +4 more
semanticscholar +1 more source
Crack propagation behavior of ER8 wheel steel containing upper bainite
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
Journal 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
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Characterisation and Development of Nanostructured, Ultrahigh Strength, and Ductile Bainitic Steels [PDF]
, 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
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, 2003 It is demonstrated that bainite can be obtained by isothermal transformation at a temperature which is so low that the calculated diffusion distance of an iron atom, over the time scale of the experiment, is many orders of magnitude less than an ...
García Mateo, Carlos +5 more
core +1 more source
Effect of Microstructure on Mechanical Properties of High Strength Steel Weld Metals [PDF]
, 2004 The effects of variations in alloying content on the microstructure and mechanical properties of high strength steel weld metals have been studied. Based on neural network modelling, weld metals were produced using shielded metal arc welding with nickel ...
Keehan, Enda
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Metals, 2020 The transformation behavior and microstructural evolution during continuous cooling within the heat affected zone between the weld beads of a 2.25Cr-1Mo-0.25V all-weld metal and the corresponding 2.25Cr-1Mo-0.25V base metal were investigated by means of ...
Hannah Schönmaier +6 more
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