Heterogenous structure and formation mechanism of white and brown etching layers in bainitic rail steel

G Gao, M Liu, X Gui, J Hu, J Luan, Z Jiao, X Wang… - Acta Materialia, 2023 - Elsevier
The failures of conventional pearlitic rail steels are strongly affected by the formation of hard
and brittle white and brown etching layers (WEL and BEL, respectively) on the rail raceway …

Microstructures, heat treatments and mechanical properties of AerMet100 steel fabricated by hybrid directed energy deposition

Y Lu, G Wang, M Zhang, R Li, H Zhang - Additive Manufacturing, 2022 - Elsevier
As a kind of directed energy deposition (DED) method, wire and arc additive manufacturing
(WAAM) is a solution for the short-process manufacturing of medium complex and integral …

[HTML][HTML] Influence of chemical segregation on bainitic microstructures in a carburized bearing steel

JA Mathews, J Sietsma, RH Petrov, MJ Santofimia - Materials & Design, 2022 - Elsevier
Bainite to austenite reversal is one of the grain refinement techniques employed in
carburized steels. However, chemical segregation influences the homogeneity of the bainitic …

Effect of non-uniform microstructure on rolling contact fatigue performance of bainitic rail steel

Z Ruijie, Z Chunlei, L Bo, Z Peijun, G Guhui… - International Journal of …, 2022 - Elsevier
Rolling contact fatigue (RCF) is the main failure mode of wheel-rail system. In this work, the
influence of non-uniform microstructure on the rolling contact fatigue performance in bainitic …

[HTML][HTML] Study of carbide dissolution and austenite formation during ultra-fast heating in medium carbon chromium molybdenum steel

S Papaefthymiou, M Bouzouni, RH Petrov - Metals, 2018 - mdpi.com
In this study, UltraFast Heat Treatment (UFHT) was applied to a soft annealed medium
carbon chromium molybdenum steel. The specimens were rapidly heated and subsequently …

A simultaneous improvement of the strength and plasticity of spring steels by replacing Mo with Si

B Xia, P Zhang, B Wang, YK Zhu, XW Li… - Materials Science and …, 2021 - Elsevier
A synchronous improvement of the strength and plasticity (SISP) is a significantly important
subject attracted by many researchers. In this study, the key factors affecting the plasticity …

[HTML][HTML] Atomic-scale investigations of isothermally formed bainite microstructures in 51CrV4 spring steel

C Goulas, A Kumar, MG Mecozzi… - Materials …, 2019 - Elsevier
Atomic-scale investigation was performed on 51CrV4 steel, isothermally held at different
temperatures within the bainitic temperature range. Transmission electron microscopy (TEM) …

[HTML][HTML] Bainite transformation-kinetics-microstructure characterization of austempered 4140 steel

JG Zhu, X Sun, GC Barber, X Han, H Qin - Metals, 2020 - mdpi.com
Bainite transformation is a kinetic process that involves complex solid diffusion and phase
structure evolution. This research systematically studies the bainite transformation of …

Effects of Mn and Cr contents on microstructures and mechanical properties of low temperature bainitic steel

H Guo, P Zhou, A Zhao, C Zhi, R Ding… - Journal of Iron and Steel …, 2017 - Springer
The effects of Mn and Cr contents on bainitic transformation kinetics, microstructures and
mechanical properties of high-carbon low alloy steels after austempered at 230, 300 and …

[HTML][HTML] Influence of austenitisation time and temperature on grain size and martensite start of 51CrV4 spring steel

A Bajželj, J Burja - Crystals, 2022 - mdpi.com
51CrV4 spring steel is a martensitic steel grade that is heat treated by quenching and
tempering. Therefore, austenitisation is an important step that influences steel properties …