Results 1 to 10 of about 391 (175)

Bainite Transformation-Kinetics-Microstructure Characterization of Austempered 4140 Steel [PDF]

Metals, 2020
Bainite transformation is a kinetic process that involves complex solid diffusion and phase structure evolution. This research systematically studies the bainite transformation of austempered 4140 steel in a wide range of isothermal temperatures, in ...
Jian G. Zhu, Xichen Sun, Gary C. Barber, Xue Han, Hao Qin   +4 more
doaj   +4 more sources

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

Journal 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, Zhihao Yang, Dongsheng Qian, Jian Lan, Lin Hua   +4 more
doaj   +3 more sources

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

Journal 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, Rushan Lu, Zihan Jin, Dongsheng Qian, Jian Lan, Lin Hua   +5 more
doaj   +3 more sources

Bainite kinetic transformation of austempered AISI 6150 steel

Journal of Materials Research and Technology, 2020
This research studies the kinetic transformation and austempering temperature effect on the morphologies of bainite for AISI 6150 steel. A minimum of 10 different holding times for each austempering temperature were utilized.
Xue Han, Zhenpu Zhang, Yanhao Rong, Steven J. Thrush, Gary C. Barber, Hongyu Yang, Feng Qiu   +6 more
doaj   +2 more sources

Continuous Cooling Transformation Behaviour and Bainite Transformation Kinetics of 23CrNi3Mo Carburised Steel [PDF]

Metals, 2020
In this study, the phase transformation behaviour of the carburised layer and the matrix of 23CrNi3Mo steel was comparatively investigated by constructing continuous cooling transformation (CCT) diagram, determining the volume fraction of retained ...
Wenjun Song, Min Lei, Mingpan Wan, Chaowen Huang   +3 more
doaj   +2 more sources

Study of bainitic transformation kinetics in SAE 52100 steel

Journal of Materials Research and Technology, 2019
The objective of this research was to investigate the bainitic formation in austempered SAE 52100 steel. The original microstructure of SAE 52100 steel consisted of spheroidized pearlite.
Yuming Pan, Bingxu Wang, Gary C. Barber
doaj   +2 more sources

New insights into the effects of deformation below-MS on isothermal kinetics of bainitic transformation

Journal of Materials Research and Technology, 2020
Both ausforming and austempering below the martensite start temperature (MS) have been shown to accelerate the bainitic transformation. This work investigates the combined effects of deformation and austempering below the MS on the isothermal ...
Haijiang Hu, Junyu Tian, Guang Xu, Hatem S. Zurob   +3 more
doaj   +2 more sources

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

Journal 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, Junyu Tian, Wei Wang, Jun Wu, Zhengliang Xue, Guang Xu   +5 more
doaj   +1 more source

Transformation kinetics of carbide-free bainitic steels during isothermal holding above and below MS

Journal of Materials Research and Technology, 2020
The transformation kinetics of a low carbon bainitic steel was investigated using in situ confocal microscopy and dilatometry for isothermal treatments above and below the martensite start (MS) temperature.
Junyu Tian, Dr., Guang Xu, Dr., Haijiang Hu, Dr., Xiang Wang, Dr., Hatem Zurob, Dr.   +4 more
doaj   +1 more source

Nanostructured bainite transformation characteristics in medium-carbon steel subjected to ausforming and isothermal holding below martensite start temperature

Journal of Materials Research and Technology, 2023
The influence of martensite on the transformation rate of bainite as well as enhancement of various properties is well established, yet the combined influence of both the primary martensite and low temperature ausforming below the martensite start ...
Pentti Kaikkonen, Sumit Ghosh, Mahesh Somani, Jukka Kömi   +3 more
doaj   +1 more source