Results 91 to 100 of about 1,989 (204)

BAINITE : OVERALL TRANSFORMATION KINETICS

Le Journal de Physique Colloques, 1982
New experimental results on the overall transformation kinetics of the bainite reaction (in three different steels) are interpreted in terms of recent work on the transformation mechanism of bainite. The analysis is shown to be consistent with (a) a linear dependence of the activation energy for isothermal nucleation, on the transformation free energy ...
openaire   +2 more sources

Effect of Two-Step Austempering Process on Transformation Kinetics of Nanostructured Bainitic Steel

, 2019
The two-step austempering process has been reported to be an effective method to accelerate the bainitic transformation process by introducing martensite (Q-M-B).
Xuemei Li, Xiaoyan Long, Changhong Guo, Leilei You, Chunhe Chu, Fucheng Zhang, Yuman Qin, Zhinan Yang   +7 more
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Study of the temperature dependence of the bainitic transformation rate in a multiphase TRIP-assisted steel

, 1999
A prerequisite to the development of multiphase TRIP-assisted steels is a good understanding of the bainitic transformation that takes place during the related thermo-mechanical processing. In this framework, the present paper proposes to investigate the
Ratchev, P, Van Humbeeck, J, Girault, E, Verlinden, B, Jacques, Pascal, Aernoudt, E   +5 more
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Effect of combined V and Ti microalloying on the microstructure and mechanical properties of TRIP-aided bainitic ferrite steel during industrial continuous annealing

Journal of Materials Research and Technology
The industrial production of carbide-free bainitic steels (i.e., TRIP-aided bainitic ferrite steels) plays a crucial role in achieving automotive lightweighting. This study focuses on the isothermal transformation kinetics, microstructural evolution, and
Zhixiang Liu, Xiao Hu, Tao Xie, Haoqing Zheng, Guanqiao Su, Yang Jin, Hua Fan, Hui Wang, Xuefei Huang   +8 more
doaj   +1 more source

Mechanical Stabilisation for Bainitic Reaction in a Fe-Mn-Si-C Bainitic Steel

, 1995
In this work, the effects of different amounts (5, 10, 20, 40%) of compressive deformation of austenite on the isothermal transformation of bainite in a Fe-Mn-Si-C alloy steel have been investigated.
C.S. Chiou, Hsieh, W., W.H. Hsieh, Yang, J., Huang, C., J.R. Yang, C.Y. Huang, Chiou, C.   +7 more
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Effects of carbon concentration and transformation temperature on incomplete transformation and crystallography of low-carbon bainitic steel

Journal of Materials Research and Technology
A close relationship exists between the crystallographic characteristics of a bainitic matrix and formation of martensite/austenite (M/A) constituents.
Binbin Wu, Tianyu Zhou, Zhiquan Wang, Xuelin Wang, Chengjia Shang, Yishuang Yu, Maged Elhefnawey, Li Li   +7 more
doaj   +1 more source

Analysis of phase transformation in high strength low alloyed steels

Metalurgija, 2017
The effect of low-alloy additions on phase transformation of high strength low alloyed steels is reported. Various as-quenched materials with microstructures consisting of low carbon (granular) bainitic, mixed bainitic/martensitic and fully martensitic ...
A. Di Schino
doaj  

Formation of cementite and transition carbides during bainitic transformation in steels with and without incomplete transformation stage

The kinetics of carbide precipitation during isothermal bainitic transformation in a Fe-0.448C-1.78Mn-1.20Si (in wt%) steel is investigated using in-situ high-energy X-ray diffraction and electron microscopy. For the sample heat treated at 623 K for 1 h,
Stark, Andreas,, Hedström, Peter,, Borgenstam, Annika,, Lin, Sen,, Babu, R. Prasath,   +4 more
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Effect of deformation temperature in the bainitic transformation during ausforming treatments

, 2020
7th International Conference (Proceedings)The so-called ausformin thermomechanical treatment consists in plastically deforming a fully austenitized steel prior to either a martensitic o a bainitic transformation. This treatment could be an alternative to
Eres-Castellanos, Adriana, García Mateo, Carlos, García Caballero, Francisca   +2 more
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Effect of ausforming on the bainitic transformation in medium carbon steels

, 2018
The best contribution to the strength of bainitic microstructures is due to the scale of the bainitic ferrite plates. In order to improve this strength, it is important to understand and control the parameters that define the final bainitic ...
Eres-Castellanos, Adriana
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