Results 81 to 90 of about 6,994 (255)

Metal Science Aspects of the Influence of Dispersion Nitride Hardening on the Structure of Hypoeutectoid and Eutectoid Carbon Steels

Механика машин, механизмов и материалов, 2020
The article presents the results of metal science research on the influence of nitrogen and vanadium microalloying of carbon steels with a carbon content of 0.5–0.8 wt.% on the thermodynamic and thermokinetic parameters of the phase redistribution of ...
Sergey Ya. Shipitsyn, Viktor I. Zhornik, Lyudmila E. Isaeva, Pavel N. Kucherenko, Dmitry I. Lihovey   +4 more
doaj  

In-situ observation of liquid zinc-induced erosion behavior diffusion mechanism in zinc-coated 22MnB5 steel

Journal of Materials Research and Technology, 2020
In this study, the erosion of liquid zinc penetrating 22MnB5 steel during austenitization was investigated by an in situ method. High-temperature confocal laser scanning microscopy (HT-CLSM) results show that erosion occurred in several areas after ...
Wang-jun Peng, Guang-xin Wu, Jie-yu Zhang   +2 more
doaj   +1 more source

Toward the Application of Multiaxial Failure Criteria: Mean Stress Sensitivity of Carbide‐Rich, High‐Alloy PM‐HIP Tool Steels Under Axial and Torsional Cyclic Loading

steel research international, EarlyView.
This study quantifies axial and torsional long‐life fatigue (LLF) behavior of three carbide‐rich PM‐HIP tool steels, correlating LLF strength with intrinsic defect size and cleanliness, thereby extracting material‐specific mean stress sensitivities and Haigh diagrams.
Lennart Mirko Scholl, Frederik Tegeder, Tobias Hajeck, Alexander Bezold, Christoph Broeckmann   +4 more
wiley   +1 more source

FEATURES OF KINETICS OF DECAY AND FORMATION OF STRUCTURE IN СHROMO-MOLYBDENUM-VANADIUM STEEL AT CONTINUOUS COOLING FROM DIFFERENT TEMPERATURES OF AUSTENITIZATION

Литьë и металлургия, 2016
Influence of austenite grain size of chrome-molybdenum-vanadium steel on formation of structure at continuous cooling has been studied. It is shown, that at the coarsen of grain with increasing temperature of austenitization from 850 till 1050°С ...
V. A. Lutsenko, T. N. Golubenko, O. V. Lutsenko, N. A. Glazunova   +3 more
doaj  

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

Evaluation of carbon diffusion in heat treatment of H13 tool steel under different atmospheric conditions

Journal of Materials Research and Technology, 2015
Although the cost of the heat treatment process is only a minor portion of the total production cost, it is arguably the most important and crucial stage on the determination of material quality.
Maziar Ramezani, Timotius Pasang, Zhan Chen, Thomas Neitzert, Dominique Au   +4 more
doaj   +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

The effect of double austenitization on the microstructure and fracture toughness of AISI M2 high speed steel

, 1998
In this study, the effect of double austenitization on microstructure and toughness of AISI M2 high speed steel was investigated. For double austenitization treatment, the specimens, which are hardened initially at 1220 degrees C and quenched in air ...
Ögel, Bilgehan, Erdogan Tekin, Tekin, E, Bilgehan Ögel   +3 more
core   +1 more source

In Situ Investigation of Microstructure Evolution and Stress Generation During Low‐Pressure Carburizing and Quenching by Means of Synchrotron X‐Ray Diffraction

steel research international, EarlyView.
This study uses in situ synchrotron X‐ray diffraction at the German Electron Synchrotron to analyze low‐pressure carburizing (LPC) in steels. The findings reveal surface carbon saturation and carbide formation kinetics, and phase‐specific stress development during quenching. The results show carbide kinetics depend on steel grade and size, while stress
Ogün Baris Tapar, Michael Georg Zürn, Jens Gibmeier, Antonio Carlos de Figueiredo Silveira, Matthias Steinbacher, Norbert Schell, Jérémy Epp   +6 more
wiley   +1 more source

The Role and Modeling of Ultrafast Heating in Isothermal Austenite Formation Kinetics in Quenching and Partitioning Steel

Metals
A modified Johnson–Mehl–Avrami–Kolmogorov (JMAK) model, including the heating rates, was proposed in this study to improve the accuracy of isothermal austenite formation kinetics prediction.
Jiang Chang, Mai Wang, Xiaoyu Yang, Yonggang Yang, Yanxin Wu, Zhenli Mi   +5 more
doaj   +1 more source