Results 51 to 60 of about 342,756 (158)

Reverse Hall–Petch Effect of Nano-Bainite in a High-Carbon Silicon-Containing Steel

Metals
High-strength steels are widely used in various mechanical production and construction industries for their low cost, high strength and high toughness. Among these, bainitic steels have better comprehensive performance relative to martensite and ferrite.
Xin Zhang, Zixuan Shao, Muqun Sun, Tianyu Cui, Qingsuo Liu, Jian Han   +5 more
doaj   +1 more source

Development of and Perspective on High-Performance Nanostructured Bainitic Bearing Steel

Engineering, 2019
Bearings are the most important component of nearly all mechanical equipment, as they guarantee the steady running of the equipment, which is especially important for high-end equipment such as high-speed trains and shield tunneling machines ...
Fucheng Zhang, Zhinan Yang
doaj   +1 more source

In Situ Observation on the Effects of Prior Martensite Formation on Nanostructured Low–Temperature Bainite Transformation

Metals, 2018
Nanobainite transformation behavior was comparably studied using in situ observations for two heat treatments: With and without partial quenching before isothermal holding at 300 °C.
Wen Zhou, Tingping Hou, Lang Tao, Kaiming Wu   +3 more
doaj   +1 more source

Effect of Dislocation Density on Deformation Behavior of Super Strong Bainitic Steel

Journal of Advanced Materials in Engineering, 2017
Presence of nanoscale bainitic ferrites and high carbon retained austenites that are stable at ambient temperature within the microstructures of super strong bainitic steels makes it possible to achieve exceptional strengths and ductility properties in ...
B. Avishan
doaj   +2 more sources

Ultrafast Heating and Initial Microstructure Effect on Phase Transformation Evolution of a CrMo Steel

Metals, 2019
Main target of the present work is to elucidate the effect of both initial microstructure and heating rate on phase transformations that occur during ultrafast processing.
Spyros Papaefthymiou, Vassilios Karamitros, Marianthi Bouzouni   +2 more
doaj   +1 more source

Effects of two-step austempering processes on the wear resistance and fatigue lifetime of high-carbon nanostructured bainitic steel

Journal of Materials Research and Technology
The previous research on two-step austempering processes have been mainly focused on the bainitic transformation kinetics, with few details the relationships between the parameters of two-step austempering process and the wear properties and fatigue ...
Dongyun Sun, Xiaoyong Feng, Peng Zhang, Xiaowen Sun, Zhinan Yang, Xiaoyan Long, Fucheng Zhang   +6 more
doaj   +1 more source

Low-Alloyed Spring Steel: Nanostructure and Strength After Austempering

Metals
Carbide-free bainite microstructures were developed in 0.6 wt.%–2 wt.% Si spring steel via austempering at 250 °C. Heat treatment included austenization with subsequent isothermal holding at 250 °C, varying the holding duration to 1.0, 1.5, or 2.0 h with
Mikhailo Brykov, Vasily Efremenko, Isabella Gallino, Ivan Petrišinets, Oleksii Kapustyan, Olexandr Klymov, Alexey Efremenko, Vasyl’ Girzhon   +7 more
doaj   +1 more source

A highly wear resistant nanostructured bainitic steel with accelerated transformation kinetics

Journal of Materials Research and Technology
A coupled Calculation of Phase Diagrams (CALPHAD), machine learning, and data mining approach was used to design a new, highly wear-resistant nanostructured bainitic steel.
Rangasayee Kannan, Yiyu Wang, Tomas Grejtak, Bryan Lim, Peeyush Nandwana   +4 more
doaj   +1 more source

Morphology Feature of Nanostructure Bainitic Steel after Tempering Treatment

, 2014
{"references": ["Caballero, F. G., Bhadeshia, H. K. D. H., Mawella, K. J. A.; Jones, D. G., and Brown, P, \"Very strong low temperature bainite\", Mater. Sci. Technol., 2002, 18, pp. 279-281.", "C. Garcia-Mateo, F. G. Caballero, and H. K. D. H. Bhadeshia, \"Development of Hard Bainite\", ISIJ Int., 2003, 43, pp.1238-1243.", "O Matsumura, Y Sakuma, and ...
Chih Yuan Chen, Chen, Chien Chon, Jin-Shyong Lin   +2 more
openaire   +1 more source

Effect of metastable retained austenite on dynamic mechanical properties of nanostructured bainitic steel under high-strain rate deformation

Journal of Materials Research and Technology
In this study, modifying the austenitizing temperature offers a strategically viable way towards creating blocky retained austenite (BRA) with varying sizes and morphologies in nanostructured bainitic steel, in strikingly contrast to the conventional ...
Shichao Fan, Ziqing Xu, Hai Hao, Yu Bai, Xiaohu Deng, Dong Guo   +5 more
doaj   +1 more source