Results 11 to 20 of about 171 (94)

Methods to Increase the Protective Effectiveness of Add-on Armour made of Perforated Ultra-High-Strength Nanobainitic Steel Plates [PDF]

Problemy Mechatroniki, 2023
The mechanical properties of industrially produced perforated steel plates are obtained by hardening and low-temperature tempering to produce a martensitic microstructure.
Bogdan GARBARZ, Jarosław MARCISZ, Wojciech BURIAN, Aleksander KOWALSKI, Jacek BOROWSKI, Szymon SZKUDELSKI, Marek WALICKI, Kamil ZAJĄC   +7 more
doaj   +2 more sources

METHOD OF OBTAINING NANOBAINITE IN STEELS : MODERN TECHNOLOGIES

Ukrainian Journal of Civil Engineering and Architecture
Statement of the problem. Trends in the development of engineering materials show a steady tendency toward increasing strength, toughness, and ductility. This is especially evident for steels, as they compete with lightweight alloys and composite materials in many fields of application.
L.M. Deineko, Yu.V. Shportko
semanticscholar   +4 more sources

Enhanced mechanical properties of 100Cr6 bearing steel through formation of nanobainite structure during ausforming treatment

Journal of Alloys and Metallurgical Systems
In this study, during an ausforming treatment, the specimens were austenitized at 1100°C and then exposed to rolling process at temperature of 300 °C by different degrees of deformation; 5, 10 and 15 %, and finally were undergone an austempering ...
Mehrbod Modarresi, Roohollah Rahmanifard
doaj   +2 more sources

Thermodynamic analysis and strength-toughness research of nanobainite

工程科学学报, 2016
In view of slow phase transformation rate in high-carbon,silicon-rich and low-alloy bainite steel(nanostructured bainite steel),the effects of alloy elements on the overall kinetics of low temperature bainite phase transformation were analyzed by using ...
ZHI Chao, ZHAO Ai-min, HE Jian-guo, ZHAO Fu-qing, CHE Ying-jian   +4 more
doaj   +2 more sources

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   +2 more sources

A superior strength and sliding-wear resistance combination of ductile iron with nanobainitic matrix

Journal of Materials Research and Technology, 2021
A nanobainitic matrix composing of nanoscale α phase and carbon-riched γ phase was obtained for the ductile iron by austempering treatment. The microstructure and properties of ductile iron were compared with GCr15.
Yuzhou Du, Xiaolong Wang, Dongya Zhang, Xin Wang, Chunpeng Ju, Bailing Jiang   +5 more
doaj   +2 more sources

Corrosion Resistance of The Bearing Steel 67SiMnCr6-6-4 with Nanobainitic Structure

Archives of Metallurgy and Materials, 2015
The paper describes a comparative study of the corrosion resistance of bearing steel 67SiMnCr6-6-4 after two kinds of nanostructuring treatments and two kinds of conventional quenching and tempering treatments.
Skołek E., Dudzińska K., Kamiński J., Świątnicki W.A.   +3 more
doaj   +2 more sources

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   +2 more sources

Mechanical Degradation and Tempering-Induced Recovery of Nanobainitic Steel After Moderate Sub-Zero Exposure

Crystals
The exploitation of advanced high-strength steels in cold climates requires a deep understanding of their structural stability and mechanical reliability.
Vasily Efremenko, Yuliia Chabak, Ivan Petrišinec, Mikhailo Brykov, Alexey Efremenko, Mattia Franceschi, Jerome Ingber, Maik Kunert, José Antonio Jimenez   +8 more
doaj   +2 more sources

TEM

Archives of Metallurgy and Materials, 2015
The aim of this study was to analyse and to identify the phases which formed in 100CrMnSi6-4 bearing steel after the nanostructuring heat treatment. Especially designed thermal treatment parameters were applied in order to obtain a nanobainitic structure.
Dworecka J., Jezierska E., Rębiś J., Rożniatowski K., Świątnicki W.   +4 more
doaj   +2 more sources