Results 1 to 10 of about 14,484 (149)

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
doaj   +1 more source

Precipitation Behavior of ω Phase and ω→α Transformation in Near β Ti-5Al-5Mo-5V-1Cr-1Fe Alloy during Aging Process

Metals, 2021
In this work, the precipitation behavior of the ω phase and ω→α transformation in Ti-5Al-5Mo-5V-1Cr-1Fe (Ti-55511) alloy was investigated during isothermal aging at 450 °C.
Yi Guo, Shaohong Wei, Sheng Yang, Yubin Ke, Xiaoyong Zhang, Kechao Zhou   +5 more
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Isothermal Transformations in Alkane Alloys [PDF]

Chemistry of Materials, 2003
no ...
Mondieig, D., Metivaud, V., Oonk, H.A.J., Cuevas-Diarte, M.-A.   +3 more
openaire   +3 more sources

In-situ observation of phase transformation during heat treatment process of high-carbon bainitic bearing steel

Journal of Materials Research and Technology, 2022
Phase transformation during austenitizing process and heat treatment process under slow cooling of high-carbon bainitic bearing steel is still unclear. Direct nano-scale microscopic observation and in-situ X-ray diffraction investigations have been used ...
Dongyun Sun, Jun Zhao, Minghe Zhang, Qiwen Fang, Xiaoyan Long, Fucheng Zhang, Zhinan Yang   +6 more
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Post-dynamic α to β phase transformation and reverse transformation of Ti-5Al-3V alloy after hot deformation in two phase region

Materials & Design, 2020
The microstructural evolutions and resulted mechanical responses during isothermal holding of multipass hot deformation are essential aspects in the processing of high performance titanium alloys. In this work, isothermal holding testing was performed on
Xiankun Ji, Hong Yu, Baoqi Guo, Fulin Jiang, Dingfa Fu, Jie Teng, Hui Zhang, John J. Jonas   +7 more
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Development of Nanobainitic Microstructures in Carbo-Austempered Cast Steels: Heat Treatment, Microstructure and Properties

Metals, 2020
Carburizing implies the existence of a carbon gradient from the surface to the core of the steel, which in turn will affect both the critical temperature for austenite formation and the kinetics of the bainitic transformation during the austempering ...
Oscar Ríos-Diez, Ricardo Aristizábal-Sierra, Claudia Serna-Giraldo, Jose A. Jimenez, Carlos Garcia-Mateo   +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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Isothermal Navier--Stokes Equations and Radon Transform [PDF]

SIAM Journal on Mathematical Analysis, 2015
In the paper we prove the existence results for initial-value boundary value problems for compressible isothermal Navier-Stokes equations. We restrict ourselves to 2D case of a problem with no-slip condition for nonstationary motion of viscous compressible isothermal fluid.
Plotnikov, P. I., Weigant, W.
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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
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A study of deformation behavior and stability of retained austenite in carbide-free bainitic steel during nanoindentation process

Journal of Materials Research and Technology, 2022
Different scale microstructures at different scales were obtained by one and two-step isothermal transformation. The deformation behavior and stability of retained austenite under the action of nanoindentation stress was investigated in these different ...
Songbo Zhou, Feng Hu, Kun Wang, Chengyang Hu, Hangyu Dong, Xiangliang Wan, Shi Cheng, R.D.K. Misra, Kaiming Wu   +8 more
doaj   +1 more source