Results 51 to 60 of about 4,141 (224)

Alloy Qualification for Producing Quench and Tempered Plate Steels with Extra‐Heavy Gage

steel research international, EarlyView.
This study develops alloy concepts for ultraheavy steel plates (>100 mm) with ≥690 MPa yield strength. Through dilatometry and Jominy testing, the effects of Mo, Ni, and B on hardenability are quantified. A synergy between 0.5% Mo and 0.5%–1.0% Ni ensures core strength at low cooling rates, while boron microalloying suppresses ferrite and promotes ...
Xabier Azpeitia, Unai Mayo, Nerea Isasti, Eric Detemple, Hardy Mohrbacher, Pello Uranga   +5 more
wiley   +1 more source

The Stability of cementite formed from hematite and titanomagnetite ore

, 2007
The stability of cementite formed during the reduction of hematite and preoxidized. titanomagnetite ores in a methane-hydrogen gas mixture was examined in the temperature interval 500 degrees C to 900 degrees C for the hematite ore and 300 degrees C to ...
Zhang, Jianqiang, Jianqiang Zhang, David Young, Oleg Ostrovski, Longbottom, Raymond, Ostrovski, Oleg, Raymond James Longbottom, Young, David   +7 more
core   +1 more source

Justification of the Changes in Work Hardening Exponent Based on Micro-Mechanisms of Deformation in a Plain Carbon Steel [PDF]

Archives of Metallurgy and Materials
Although several studies have been conducted on the evaluation of work hardening behavior of dual-phase steels with the Hollomon equation, few studies have investigated the factors affecting the number of work hardening stages and the changes of work ...
M.S. Mohsenzadeh
doaj   +1 more source

Studies and Researches on Heating Microstructures of Some Steels

Scientific Bulletin of Valahia University: Materials and Mechanics, 2022
An important category of widely used steels is chromium alloy improvement steels (STAS 9382/4-89) intended for the execution of shafts, axles, cams, sprockets and sprockets subjected to operation at important demands.
Stoian Elena Valentina, Bratu Vasile, Bratu Ruxandra Elena, Petre Ivona Camelia, Enescu Maria Cristiana, Rusanescu Carmen Otilia   +5 more
doaj   +1 more source

Exploiting Residual Elements Arising from Scrap Steel in Future Sustainable Steel Alloy Design

steel research international, EarlyView.
Herein, the effects of residual elements Cu and Sn on grain growth, recrystallization, and phase transformation in C–Mn steel are summarized, and a case study is presented on how the presence of residual elements can be exploited to reduce deliberate Nb microalloying while achieving the same grain size control and strength during thermomechanical ...
Claire Davis, Carl Slater, Yulin Ju, Jiaqi Duan, Pedram Dastur, Martin Strangwood   +5 more
wiley   +1 more source

Cementite Spheroidization of Drawn Wire during Isothermal Treatment

, 2011
Lamellar cementite will be spheroidized in drawn pearlitic steel wire during galvanization process. To understand the evolution of the microstructure in this process, effects of isothermal time on microstructure of drawn pearlitic steel wires were ...
Xian Jun Hu, Jian Qing Jiang, Feng Fang, Shao Hui Chen   +3 more
core   +1 more source

Regularities of Cementite Decomposition in Hypereutectoid Steels

, 2021
Comprehensive studies have been carried out and the main regularities of cementite decomposition during thermocyclic processing of carbon-based hypereutectoid steels have been ...
Igor V. Minaev, Andrey V. Malyarov, Alexander E. Gvozdev, Sergey N. Kutepov   +3 more
core   +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

Tribological behavior of Fe3C–CNT bilayers grown by plasma-induced metal dusting: Insights into the effect of nanotubes catalyst particles on friction and wear

Friction
This work investigates the tribological behavior of bilayer surfaces formed by vertically aligned carbon nanotube (VACNT) films grown on top of cementite (Fe3C) layers.
Thiago De Souza Lamim, Tainá Pigosso, Tainan Daniel Andrioni, Diego Martínez-Martínez, José Daniel Biasoli de Mello, Cristiano Simões Abreu, Aloisio Nelmo Klein, Tatiana Bendo, Cristiano Binder   +8 more
doaj   +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