Results 21 to 30 of about 1,418 (199)

Elucidation of void defects by soft reduction in medium carbon steel via EBSD and X-ray computed tomography

Materials & Design, 2021
In this work, void formation in medium carbon ferrite-pearlite steel is investigated with soft reduction (SR) technology as regards its initiation sites and governing factors: prior austenite grain size, grain boundary ferrite (GB-α) precipitation ...
Naqash Ali, Liqiang Zhang, Hongwei Zhou, Aonan Zhao, Chaojie Zhang, Yuan Gao   +5 more
doaj   +1 more source

Prior austenite orientation reconstruction of coherently transformed products and its application on austenite twinning

工程科学学报, 2018
High-angle grain boundaries and martensite/austenite (M/A) constituents are two critical factors that contribute to low impact toughness in metals. The generation mechanism of the high-angle grain boundaries is closely related to the crystallography of ...
WANG Zhi-quan, SONG Ting-ting, YOU Yang, WANG Xue-lin, SHANG Cheng-jia, LIU Kun, CHEN Bin   +6 more
doaj   +1 more source

Austenite grain growth and hot deformation behavior in a medium carbon low alloy steel

Journal of Materials Research and Technology, 2020
To examine the austenite grain growth behavior and kinetics under isothermal austenitization process in a low alloy medium carbon forged steel, heat treatments at different temperatures (1150, 1175, 1200, and 1260 °C) and times (5, 15, and 25 min) were ...
A. Chamanfar, S.M. Chentouf, M. Jahazi, L.-P. Lapierre-Boire   +3 more
doaj   +1 more source

Continuous cooling transformation diagrams of HSLA steel for seamless tubes production [PDF]

Journal of Mining and Metallurgy. Section B: Metallurgy, 2019
The CCT and two DCCT diagrams were constructed for the HSLA steel containing Cr, V, Nb, and N microadditions, taking into account industrial processing parameters of this material in a seamless tubes rolling mill.
Schindler I., Kawulok R., Seillier Y., Kawulok P., Opěla P., Rusz S., Vodárek V., Turoň R.   +7 more
doaj   +1 more source

Efficient reconstruction of prior austenite grains in steel from etched light optical micrographs using deep learning and annotations from correlative microscopy

Frontiers in Materials, 2022
The high-temperature austenite phase is the initial state of practically all technologically relevant hot forming and heat treatment operations in steel processing. The phenomena occurring in austenite, such as recrystallization or grain growth, can have
Björn-Ivo Bachmann, Björn-Ivo Bachmann, Martin Müller, Martin Müller, Dominik Britz, Dominik Britz, Ali Riza Durmaz, Marc Ackermann, Oleg Shchyglo, Thorsten Staudt, Frank Mücklich, Frank Mücklich   +11 more
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Austenite Grain Size Estimation in Structural Steels by Linear Section Method / Ocena Wielkości Ziarna Austenitu Metodą Przekrojów Liniowych

Archives of Metallurgy and Materials, 2015
Linear section of grains in polyhedral material microstructure is a system of chords on a test line. The mean chord length is the linear grain size of the material. In the prior austenite microstructure of low alloy structural steels, the chord length is
Adrian H., Wiencek K.
doaj   +1 more source

Effect of Double-Quenching on the Hardness and Toughness of a Wear-Resistant Steel

Metals, 2022
Martensitic/bainitic wear-resistant steels are widely used in civilian industry, where a good combination of strength and toughness is required. In the present study, a double-quenching process was applied and compared to the conventional single ...
Jingliang Wang, Rongtao Qian, Song Huang, Chengjia Shang   +3 more
doaj   +1 more source

Effects of Electropulsing Treatment on the Microstructure and Mechanical Property of M2 High-speed Steel [PDF]

Teshugang
Using conventional heat treatment combined with electrical pulse treatment （abbreviated EPT） ，the M2 high-speed steel was processed and the microstructure was observed using microscope， SEM and EBSD， the bending resistance of the specimen was tested. The
Zhang　Jiatao, Liu　Zhaohua, Ye　Lirun
doaj   +3 more sources

Exploring the Difference in Bainite Transformation with Varying the Prior Austenite Grain Size in Low Carbon Steel

Metals, 2018
The simulation welding thermal cycle technique was employed to generate different sizes of prior austenite grains. Dilatometry tests, in situ laser scanning confocal microscopy, and transmission electron microscopy were used to investigate the role of ...
Liangyun Lan, Zhiyuan Chang, Penghui Fan
doaj   +1 more source

Austenite formation from a steel microstructure containing martensite/austenite and bainite bands

Journal of Materials Research and Technology, 2023
In many commercial steel processing routes, steel microstructures are reverted to an austenitic condition prior to the final processing steps. Understanding the microstructure development during austenitization is crucial for improving the performance ...
J. Abraham Mathews, J. Sietsma, R.H. Petrov, M.J. Santofimia   +3 more
doaj   +1 more source