Results 61 to 70 of about 2,782 (221)

Effect of cold deformation on the bainite transformation kinetics, microstructural evolution and mechanical properties of austempered GCr15 bearing steel

Journal of Materials Research and Technology, 2023
In this work, the effect of prior cold deformation on the bainite transformation kinetics of austempered GCr15 bearing steel was investigated by means of dilatometry.
Xiaohui Lu, Rushan Lu, Zihan Jin, Dongsheng Qian, Jian Lan, Lin Hua   +5 more
doaj   +1 more source

Phase Transformation Behavior of Continuously Cooled Fe–C–V–(Mo) Alloys

steel research international, EarlyView.
Additions of vanadium and molybdenum microalloying are shown to reshape phase transformations in clean low‐carbon steels. By tracking microstructural shifts during continuous cooling, the work uncovers the correlation between transformation kinetics, ferrite morphology, and hardness.
Anastasiya Tselikova, Jannik Zuraszek, Ulrich Krupp, Rolf Schmidt, Hardy Mohrbacher, Alexander Gramlich   +5 more
wiley   +1 more source

Study on Bainitic Transformation by Dilatometer and In Situ LSCM [PDF]

Materials, 2019
This study investigates the bainitic transformation kinetics of carbide-free bainitic steel with Si + Al and carbide-bearing bainitic steel without Si + Al, as well as the phase transformation and microstructure through in situ high-temperature laser scanning confocal microscopy.
Xiaoyan Long, Fucheng Zhang, Zhinan Yang, Ming Zhang   +3 more
openaire   +2 more sources

In situ observation of bainitic transformation behavior in medium carbon bainitic steel

Journal of Materials Research and Technology, 2022
The bainitic transformation behavior of samples with different scales was observed with dilatometer (DIL), high-temperature laser scanning confocal microscope (LCSM), and environmental transmission electron microscope (ETEM). Results show that the bainitic transformation behavior varies according to the geometrical size of samples, and it is mainly ...
Xiaojie Zhao, Zhinan Yang, Chunlei Zheng, Fucheng Zhang, Xiaoyan Long   +4 more
openaire   +2 more sources

Experimental and Modelling Research on the Effect of Prior Ferrite on Bainitic Transformation in Medium-Carbon Bainitic Steel

Crystals
In this study, we investigate the impact of prior ferrite on the bainite transformation kinetics and microstructure of medium-carbon steel interrupted by an intercritical annealing (IAA) process.
Xinpan Yu, Wei Liu, Kang He, Tengfei Wang, Gang Niu, Huibin Wu   +5 more
doaj   +1 more source

Austenite-Bainite Transformation Kinetics in Austempered AISI 5160 Steel

, 2018
This research investigates the process of the formation of bainite in austempered 5160 steel. Steel bar samples were austenitized at 1128 K for 20 minutes followed by holding at various times from 10 seconds to 2 hours and isothermal temperatures from ...
Wang, Bingxu, Barber, Gary, Sun, Xichen, Gary Barber, Zhang, Zhenpu, Xichen Sun, Zhenpu Zhang, Bingxu Wang, Shi, Jing, Xue Han, Jing Shi, Zhu, Jian, Jian Zhu, Han, Xue   +13 more
core   +1 more source

Press Hardening for Sustainable Lightweight Chassis Design in Heavy‐Duty Vehicles: A Material Performance and Life Cycle Assessment Approach

steel research international, EarlyView.
The article explores how high‐strength steels and press hardening revolutionize lightweight chassis design for heavy‐duty vehicles. It reveals that press hardened steels combined with shot peening can cut weight by up to 34% and reduce environmental impact by 21%–32%.
Violeta Vargas‐Parra, Sergi Parareda, Jose Jorge Espí‐Gallart, Jaume Pujante, Gustaf Gustafsson, Henrik Sieurin, David Frómeta, Daniel Casellas   +7 more
wiley   +1 more source

Enhancing strength without sacrificing ductility in medium-carbon multiphase bainitic steel through increased intercritical annealing temperatures

Journal of Materials Research and Technology
In bainitic steels, enhancing strength often comes at the expense of ductility. In this paper, a medium-carbon multiphase bainitic steel was produced through intercritical annealing (IA) at various temperatures, followed by isothermal bainite ...
Wenlu Yu, Kaifang Li, Lihe Qian, Yipeng Ding, Zhixuan Jia, Chaozhang Wei, Limei Ren, Zhaoxiang Chen, Fucheng Zhang, Jiangying Meng   +9 more
doaj   +1 more source

Effect of Austenitizing Temperature and Prior Martensite on Ultra-Fine Bainite Transformation Kinetics

, 2019
An evaluation method for bainite transformation kinetics was established by theoretical derivation, dilatometric curve analysis, and microstructure observation.
Zhiyong Li, Liang Qi, Yang Luo, Xiyue Zhou, Pengfei Li, Zhigang Wang, Shengci Li   +6 more
core   +1 more source

Effect of Double Annealing on the Microstructure and Mechanical Properties of a Medium Manganese Steel

steel research international, EarlyView.
A double intercritical annealing strategy is proposed to tailor the multiphase microstructure and mechanical response of a medium‐Mn steel. The treatment produces an ultrafine mixture of ferrite, martensite and multiple austenite populations with graded thermal and mechanical stability, formed through austenite reversion and controlled retransformation.
Mattia Franceschi, Jose A. Jimenez, Carlos Garcia‐Mateo, Radhakanta Rana   +3 more
wiley   +1 more source