Results 31 to 40 of about 450 (186)

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

Phenomenological Prediction of Defect Formation in Continuous Casting of Steel Utilizing Fundamental Modeling and Machine Learning

steel research international, EarlyView.
In this article, decision tree classifiers are developed to predict defects in continuous casting of steel utilizing caster data from SSAB Raahe Works (Finland). Phenomenological quality criteria extracted from applicable process measurements and results from solidification and heat transfer simulations are utilized in prediction.
Julius Norrena, Seppo Louhenkilpi, Ville‐Valtteri Visuri, Tuomas Alatarvas, Agne Bogdanoff, Timo Fabritius   +5 more
wiley   +1 more source

Machinability of Multiphase Microalloyed Steel

Procedia CIRP, 2012
Abstract The machining of multiphase (ferrite-bainite-martensite) microalloyed steel was carried out in a high speed lathe to assess the machinability. The mechanical properties of multiphase (ferrite-bainite-martensite) microalloyed steel were analogous to those of quenched & tempered steels.
Sivaraman, V., Sankaran, S., Vijayaraghavan, L.   +2 more
openaire   +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

The influence of the oxygen equivalent in a gas-mixture on the structure and toughness of microalloyed steel weldments [PDF]

Journal of the Serbian Chemical Society, 2006
Testings were carried out on two steels. The first was microalloyed with Nb and second with Ti, Nb and V. The impact toughness of weld metals of these steels was evaluated using an instrumented Charpy pendulum.
RADICA PROKIC-CVETKOVIC, ANDJELKA MILOSAVLJEVIC, ALEKSANDAR SEDMAK, OLIVERA POPOVIC   +3 more
doaj   +3 more sources

Effect of Nanosized Precipitates on Corrosion Resistance of Nb-Microalloyed Steels

Metals, 2022
High-strength cold-rolled low-carbon microalloyed steels are widely used in the automotive industry. Preference is generally given to microalloying with niobium, since its effect on the mechanical properties of steel is most pronounced due to both ...
Irina Rodionova, Nataliya Arutyunyan, Andrey Amezhnov, Dmitrii D’yakonov, Yuliya Gladchenkova, Sergey Dunaev, Irina Vasechkina   +6 more
doaj   +1 more source

Substitution of Ti by Nb in Maraging Steel: Effects on Strengthening Mechanisms and Crystallographic Behavior

steel research international, EarlyView.
This work demonstrates that replacing Ti with Nb in maraging steel forms nanoscale Nb–Mo particles along boundaries, strengthening the alloy without relying on Ti phases. Heat‐treatment tuning promotes uniform crystal orientation and balanced grain boundaries, enabling strong yet ductile behavior.
Mohamad Masoumi, Manoel José, Gerardo Jesus Aracena Pérez, Isabel Ferreira Barros, Marcos Natan da Silva Lima, Geronimo Perez, Samuel Lucas Santos Medeiros, Pedro Henrique Pinheiro Lima, Luís Flávio Gaspar Herculano, Maria Vittoria Moraschini Reis, Sérgio Souto Maior Tavares, Farina Alexandre Bellegard, Fridman Daniel Pallos, Miloslav Béreš, Hamilton Ferreira Gomes de Abreu   +14 more
wiley   +1 more source

Synergistic effects of carbon content and Ti/Mo ratio on precipitation behavior of HSLA steel: Insights from experiment and critical patent analysis

Materials & Design, 2020
A one-step heat treatment comprising isothermal holding in the two-phase region for different time periods and subsequent quenching contributed to the development of a ferrite and martensite dual-phase structure in TiMo microalloyed steels with ...
Chih-Yuan Chen, Meng-Hsuan Liao
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

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