Results 1 to 10 of about 1,130 (182)

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

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

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, Minqiang Zou, Liang Qi, Olanrewaju A. Ojo, Zhigang Wang   +4 more
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Influence of Austenitisation Temperature and Time on Martensitic and Isothermal Bainite Phase Transformation of Spring Steel

Metals, 2022
The influence of austenitisation temperature and time on the martensitic and isothermal bainite transformation of 51CrV4 spring steel was analysed. Based on the analysis of dilatometric curves, the martensite start temperatures (MS) were determined at ...
Anže Bajželj, Jaka Burja
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Effect of recrystallization on bainite transformation and mechanical properties of complex phase steel with high formability (CH steel)

Journal of Materials Research and Technology, 2023
Herein, the effect of recrystallization on the bainite transformation and mechanical properties of CH steel were investigated using SEM, TEM, EBSD, dilatometry, and tensile testing machine.
Xiaohong Chu, Yan Zhao, Yuhuan Yang, Feng Zhou, Lei Liu, Zhengzhi Zhao   +5 more
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Bainite Transformation-Kinetics-Microstructure Characterization of Austempered 4140 Steel

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
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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, L.J. Miao, X.F. Yu, T.M. Liu, L. Liu, J.L. Liu   +5 more
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Effect of Austenite Grain Size on the Bainitic Transformation in a 690 MPa Grade High-Strength Multi-Functional Construction Steel

Metals, 2022
A high-strength low-carbon construction structural steel was investigated in the laboratory. The various austenite grain sizes were obtained by austenitizing the steel at different temperatures.
Zhenye Chen, Xiujuan Zhao, Jianjun Qi, Wenting Zhu, Yanqing Zhao, Liqing Chen   +5 more
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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
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Effect of ferrite phase fraction on bainite transformation plasticity in double transformation

Mechanical Engineering Journal, 2017
Transformation plasticity significantly affects the stress distribution of a forging after heat-treatment. In this study, the transformation plasticity in a multi-phase transformation was measured experimentally.
Yusuke YANAGISAWA, Takafumi HOSOYA, Yasuhiro KISHI, Katsuhiko SASAKI   +3 more
doaj   +1 more source