Results 61 to 70 of about 4,141 (224)

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

Fabrication of Fe/C Composites as Effective Electromagnetic Wave Absorber by Carbonization of Pre-magnetized Natural Wood Fibers

Journal of Bioresources and Bioproducts, 2019
With the increasing usage of varied electronic devices, the induced electromagnetic interference (EMI) irradiation pollution has become a novel environmental pollution besides of water and air pollutions, drawing a great of interests from the scientists ...
Zhichao Lou, Weikai Wang, Chenglong Yuan, Yao Zhang, Yanjun Li, Lintian Yang   +5 more
doaj   +1 more source

Structure and phase composition of high-speed steels

Қарағанды университетінің хабаршысы. Физика сериясы, 2020
This work is devoted to the study of the structure and phase composition of high-speed steels R6M5, R9 and R18. High service properties of high-speed steel tools are achieved by heat treatment.
Б.К. Рахадилов, В. Виелеба, М.К. Кылышканов, А.Б. Кенесбеков, М. Маулет   +4 more
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

The formation of cementite from hematite and titanomagnetite iron ore and its stability

, 2005
This project examined the reduction and formation of cementite from hematite and titanomagnetite ores and cementite stability. The aim of the project was to develop further understanding of cementite stability under conditions relevant to direct ...
Longbottom, Raymond James
core   +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

DENDRITIC CRYSTALLIZATION OF CAST IRON

Литьë и металлургия, 2015
It is shown that crystallization of the main phases in cast iron happens on the dendritic mechanism. The main phases when hardening cast iron are dendrites of austenite, graphite and a cementite.
V. Stetsenko
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

Influence of Tramp Elements on Phase Transformations, Structure, and Properties of Scrap‐Based Steels: A Focused Review of Recent Developments

steel research international, EarlyView.
This review explains how impurities from recycled scrap affect steel production and performance. Even small amounts (far below 1%) of these impurities can change how steel behaves during fabrication but also affect the properties of the end product. With better understanding and targeted countermeasures, these challenges can be managed, enabling wider ...
Oleksandr Glushko, Ronald Schnitzer
wiley   +1 more source

The effect of network cementite dissolution on the nucleation and growth of prior austenite grains in high carbon low alloy steels

Journal of Materials Research and Technology
The state of austenite grains has an essential role in the microstructure transformation and mechanical properties of alloy steel during heat treatment or subsequent hot working.
Dezhi Li, Xianming Zhao, Hongliang Zhang, Jie Li, Huaibin Han   +4 more
doaj   +1 more source