Results 11 to 20 of about 1,130 (182)

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

Kinetics of Bainite Transformation in Multiphase High Carbon Low-Silicon Steel with and without Pre-Existing Martensite

Metals, 2022
In the present study, the isothermal decomposition of austenite to bainite in 1.0 wt% carbon, 0.21% silicon steel during the partitioning step of a quenching and partitioning (Q&P) heat treatment has been investigated in a dilatometer in the temperature ...
Zeinab Babasafari, Alexey V. Pan, Farshid Pahlevani, Suk Chun Moon, Madeleine Du Toit, Rian Dippenaar   +5 more
doaj   +1 more source

Ultrafine bainitic steel produced through ausforming-quenching process

Journal of Materials Research and Technology, 2020
The coupling effects of ausforming and quenching process on isothermal bainite transformation behaviors, microstructures and mechanical properties of ultrafine bainitic steel have been analyzed.
H. Guo, Y.P. Fan, X.Y. Feng, Q. Li
doaj   +1 more source

Effect of Austempering Temperature on Microstructure and Mechanical Properties of M50 Bearing Steel

Journal of Materials Research and Technology, 2022
By means of microstructure observation and mechanical property tests, the effect of austempering temperature on the bainite transformation, carbide precipitation, and the hardness, impact toughness of M50 bearing steel were studied.
Y. Su, S. Yang, X.F. Yu, C.B. Zhou, Y.B. Liu, X.C. Feng, Q. Zhao, J.D. Wu   +7 more
doaj   +1 more source

Modeling of bainitic phase transformation [PDF]

PAMM, 2010
AbstractIn this work, we present a macroscopic material model for simulation of austenite to bainite and of austenite to martensite transformations accompanied by transformation‐induced plasticity (TRIP), which is an important phenomenon in metal forming processes.
Andreas Schneidt, Rolf Mahnken
openaire   +1 more source

Modeling Bainitic Transformations during Press Hardening [PDF]

Materials, 2021
We revisit recent findings on experimental and modeling investigations of bainitic transformations under the influence of external stresses and pre-strain during the press hardening process. Experimentally, the transformation kinetics in 22MnB5 under various tensile stresses are studied both on the macroscopic and microstructural level. In the bainitic
Mingxuan Lin, Carina Zimmermann, Kai Wang, Martin Hunkel, Ulrich Prahl, Robert Spatschek   +5 more
openaire   +4 more sources

Continuous Cooling Transformation Diagrams of 2.25Cr-1Mo-0.25V Submerged-Arc Weld Metal and Base Metal

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, Bernd Loder, Thomas Fischer, Fred Grimm, Ronny Krein, Martin Schmitz-Niederau, Ronald Schnitzer   +6 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

Effect of Transformation Temperature on Microstructure andMechanical Properties of Bainite [PDF]

Engineering and Technology Journal, 2012
Fully bainitic microstructure can be obtained by isothermal transformation at temperatures within the range of bainite transformation. Both transformation temperature and time determine the phase fraction, the scale of the resultant microstructure and ...
Hala Salman Hasan
doaj   +1 more source

The Influence of Ni on Bainite/Martensite Transformation and Mechanical Properties of Deposited Metals Obtained from Metal-Cored Wire

Metals, 2021
The multi-pass deposited metals were prepared by metal-cored wire with low (2.5 wt%) and high (4.0 wt%) Ni to research the effect of Ni on the bainite/martensite transformation.
Jiamei Wang, Xinjie Di, Chengning Li, Dongpo Wang   +3 more
doaj   +1 more source