Results 51 to 60 of about 5,034 (218)

Structural Phase Transformation of Rail Steel in Compression

Metals, 2022
The analysis of structure and defective substructure of rail steel in uniaxial compression to a degree of 50% is carried out. It is revealed that cold hardening has a multi-stage character and is accompanied by fragmentations of pearlite grains which is ...
Krestina Aksenova, Victor Gromov, Yurii Ivanov, Rongshan Qin, Ekaterina Vashchuk   +4 more
doaj   +1 more source

An Investigation on Divorced Eutectoid Growth of Cementite in Eutectoid Steel [PDF]

Archives of Metallurgy and Materials, 2020
Divorced eutectoid growth of cementite in AISI 1080 steel is investigated as a function of cooling rate for incomplete austenitization-based heat treatment.
Prasenjit Biswas, Joydeep Maity
doaj   +1 more source

Improvement in the Strength–Ductility Balance of Tempered Martensite Steel by Controlling Cementite Particle Size Distribution [PDF]

, 2023
We attempted to improve the strength–ductility balance of tempered martensite steel by controlling cementite particle size distribution. Four types of samples of varying tempering temperatures were prepared: T973-60m and T823-60m samples were heated to ...
Yoshitaka Adachi, Sun, Fei, Lei He, Fei Sun, Hayakawa, Kenji, Kenji Hayakawa, He, Lei, Toshio Ogawa, Ogawa, Toshio, Adachi, Yoshitaka   +9 more
core   +1 more source

Investigation of the Reoxidation and Material Behavior of Directly Reduced Pellets and Fines Under Simulated Rail Transport Conditions

steel research international, EarlyView.
The study investigates the reoxidation behavior of DRI pellets (Midrex and H2‐reduced) under realistic conditions, considering the test parameters of temperature, humidity, storage duration, particle size (including fine fraction), and container geometry. The samples are analyzed based on mass changes.
Bernd Taferner, Johannes Schenk, Richard Schanner, Peter Gluschitz, Jan Eisbacher‐Lubensky   +4 more
wiley   +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

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

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

Analyses of the Deformability and Chemistry of Non‐Metallic Inclusions in QT Steels With Increased Recycling‐Induced Tramp Element Content

steel research international, EarlyView.
This work uses high‐temperature dilatometry to examine how the tramp elements Cu, Ni, and Sn affect the deformability of non‐metallic inclusions and matrix in quench‐and‐temper steel. Mg‐bearing inclusions deform less than Mg‐free ones. Copper lowers formability. Nickel increases deformability.
Julian Cejka, Isabell Gruber, Gerald Klösch, Susanne Katharina Michelic   +3 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

Insights Into Paint‐Bake Toughening of Resistance Spot Welds of a 2.0 GPa Warm‐Stamped Medium‐Mn Steel

steel research international, EarlyView.
Paint baking of resistance spot welded joints of 2.0 GPa warm‐stamped medium‐Mn steel activates low‐temperature tempering, forming fine cementite in the fusion zone and enhancing toughness. Crack propagation resistance increases, shifting the failure mode from partial interfacial to complete pullout, with peak load and energy absorption rising ...
Sunusi Marwana Manladan, Savyasachi Nellikode, YeoJin Jang, Sumin Lee, Dileep Chandran Ramachandran, Sung‐bo Heo, Jinyoung Lee, Young‐Kook Lee, Yeong‐Do Park   +8 more
wiley   +1 more source