Results 61 to 70 of about 86 (78)

Producing Nanobainite on Carburized Surface of a Low-Carbon Low-Alloy Steel

Journal of Materials Engineering and Performance, 2022
Conducting the carburizing process on the surface layer of low-carbon steel and subsequent austempering heat treatment can be implemented to obtain nanobainite microstructure on the surface of steels. In this research, steel with 0.23 wt.% carbon was carburized for 3 h at 900 degrees C in a liquid salt bath containing sodium cyanide, sodium carbonate ...
Avishan, Behzad, Talebi, Peyman, Yazdani, Sasan, TEKELİ, SÜLEYMAN   +3 more
openaire   +2 more sources

Effect of Austempering Route on Microstructural Characterization of Nanobainitic Steel

Acta Metallurgica Sinica (English Letters), 2014
A low-temperature nanobainitic steel was obtained through one-step and two-step austempering. The effect of austempering temperature, time, and route on bainitic lath width, volume fraction of retained austenite, carbon concentration in retained austenite, and nanohardness of bainitic lath and retained austenite was studied.
Huifang Lan, Linxiu Du, Na Zhou, Xianghua Liu   +3 more
openaire   +1 more source

Phase quantification in nanobainite via magnetic measurements and X-ray diffraction

Journal of Magnetism and Magnetic Materials, 2015
Abstract Accurate phase quantification of nanostructured bainitic steel is of importance because of the nature of its percolating structure that controls many of its mechanical properties. X-ray diffraction is the technique of choice for such analysis, but magnetic methods can be more rapid and less sensitive to defect structures.
W. Solano-Alvarez, H.F.G. Abreu, M.R. da Silva, M.J. Peet   +3 more
openaire   +1 more source

Application of Advanced Experimental Techniques for the Microstructural Characterization of Nanobainitic Steels

Solid State Phenomena, 2011
A 0.79C-1.5Si-1.98Mn-0.98Cr-0.24Mo-1.06Al-1.58Co (wt%) steel was isothermally heat treated at 350°C bainitic transformation temperature for 1 day to form fully bainitic structure with nano-layers of bainitic ferrite and retained austenite, while a 0.26C-1.96Si-2Mn-0.31Mo (wt%) steel was subjected to a successive isothermal heat treatment at 700°C for ...
Ilana Timokhina, Hossein Beladi, Xiang Yuan Xiong, Yoshitaka Adachi, Peter Hodgson   +4 more
openaire   +1 more source

Correlation of Fatigue Limit and Crack Growth Threshold Value to the Nanobainitic Microstructure

Solid State Phenomena, 2016
The recently developed nanobainitic steels show high ultimate tensile strength (UTS) as well as high ductility. Although this combination seems to be desirable for fatigue design, fatigue limit of nanostructured bainite is often disappointingly low.
Inga Müller, Rosalia Rementeria, Francisca G. Caballero, Matthias Kuntz, Eberhard Kerscher   +4 more
openaire   +1 more source

Properties of Steel with Nanobainitic Structure

Metal Science and Heat Treatment, 2022
A. I. Popelyukh, S. V. Veselov, D. D. Munkueva   +2 more
openaire   +1 more source

Effect of austenite grain size on transformation of nanobainite and its mechanical properties

Materials Science and Engineering: A, 2016
Abstract Nanobainite steels display an excellent combination of outstanding strength and ductility. However, the transformation rate and impact toughness of nanobainite still need to be improved. In this work, the effect of refining austenite grain size to an ultrafine one on bainite transformation and its mechanical properties were investigated ...
Tao Jiang, Hongji Liu, Junjie Sun, Shengwu Guo, Yongning Liu   +4 more
openaire   +1 more source

The formation mechanism and microstructural characteristics of novel nanobainitic steel

Металловедение и термическая обработка металлов
Исследовано влияние предварительного высокотемпературного отжига при температурах выше Accm на эволюцию микроструктуры при бейнитном превращении в процессе аустемперинга в стали, содержащей, % (масс.): 0,95C; 1,37Si; 1,04Cr; 0,44Mn. Использованы методы дифференциального термического анализа, рентгеноструктурного анализа и просвечивающей электронной ...
Xin Zhang, Ruiqi Guo, Jizheng Yao, Tianyu Cui   +3 more
openaire   +1 more source

Microstructure and mechanical properties of nanobainitic steel subjected to multiple isothermal heat treatments

Journal of Iron and Steel Research International, 2018
Nanostructured bainite in 62MnSiCr steel was prepared by two-stage transformation process at different temperatures for less than 2 h. Microstructures, phase distribution and mechanical properties of the obtained steel were investigated. The results showed that the thickness of bainite plate and the amount of retained austenite decreased obviously ...
Ning Liu, Xin Zhang, Jing Ding, Jun He, Fu-xing Yin   +4 more
openaire   +1 more source

Replacing martensite with nanobainite in moderately alloyed carburised steel for better wear performance

International Journal of Materials Research, 2019
Abstract Nanobainitic structures were produced in a low alloy carburised steel at temperatures of 200, 250 and 300°C. Scanning electron microscope micrographs indicated bainitic ferrites formed with a thickness range of 30–150 nm. Wear test results revealed that the coefficient of friction for nanobainitic samples was smaller and ...
Elina Akbarzadeh Chiniforush, Sasan Yazdani, Mahdieh Mohammadi, Nader Niki   +3 more
openaire   +1 more source