Results 21 to 30 of about 8,403 (202)

Influence of Austenite Grain Size on Mechanical Properties after Quench and Partitioning Treatment of a 42SiCr Steel

Metals, 2019
This paper examines how the initial austenite grain size in quench and partitioning (Q-P) processes influences the final mechanical properties of Q-P steels.
Sebastian Härtel, Birgit Awiszus, Marcel Graf, Alexander Nitsche, Marcus Böhme, Martin F.-X. Wagner, Hana Jirkova, Bohuslav Masek   +7 more
doaj   +1 more source

Dispersion strengthening in vanadium microalloyed steels processed by simulated thin slab casting and direct charging: Part I - Processing parameters, mechanical properties and microstructure [PDF]

, 2007
A study simulating thin slab continuous casting followed by direct charging into an equalisation furnace has been undertaken based on six low carbon (0.06wt-%) vanadium microalloyed steels.
Baker, T.N., Craven, A.J., Crowther, D., Li, Y., Mitchell, P.S., Wilson, J.A.   +5 more
core   +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

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

Review on the prediction of residual stress in welded steel components [PDF]

, 2020
Residual stress after welding has negative effects on the service life of welded steel components or structures. This work reviews three most commonly used methods for predicting residual stress, namely, empirical, semi-empirical and process simulation ...
Abdel Wahab, Magd, Ni, Junyan, Zhuang, Xincun   +2 more
core   +1 more source

Processes, microstructure and properties of vanadium microalloyed steels [PDF]

, 2009
Vanadium as an important alloying element in steels was initially associated with the properties achieved following tempering. Interest in the microstructure was stimulated by the advent of transmission electron microscopes with a resolution of ~1nm ...
Baker, T.N.
core   +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
doaj   +1 more source

Object kinetic Monte Carlo study of the effect of grain boundaries in martensitic Fe-Cr-C alloys [PDF]

, 2016
Fe-Cr-C alloys with chromium concentrations in the range from similar to 2 to 12 wt.% form ferritic-martensitic structures by rapid cooling from the austenite state already in the presence of relatively low carbon concentrations.
Allen, Bortz, Bruemmer, Chiapetto, Chiapetto, del Rio, Domain, Flewitt, Hernández-Mayoral, Hernández-Mayoral, Jansson, Jansson, Karthikeyan, Kim, Konstantinovic, Malerba, Malerba, Matijasevic, Morito, Morito, Morito, Nichols, Olsson, Stoller, Stoller, Stoller, Tanigawa, Terentyev, Terentyev, Yang, Young, Zhurkin   +31 more
core   +2 more sources