Results 91 to 100 of about 4,141 (224)

NANOSTRUCTURAL PROCESSES OF MELTING AND CRYSTALLIZATION OF CAST IRON

open access: yesЛитьë и металлургия, 2015
It is shown that melt of cast iron of the eutectic structure consist of austenite nanocrystals, graphite, acementite and atoms of iron. Processof melting and crystallization of cast iron is difficult physical and chemical nanoprocess. Thermodynamic it is
V. Stetsenko
doaj   +1 more source

Effect of Cementite Volume Fraction on Static Tensile Properties in Ultrafine-grained Ferrite–Cementite Steels

open access: yesTetsu-to-Hagane, 2010
Effect of cementite volume fraction on stress–strain relations in ultrafine-grained ferrite-cementite (FC) steels was studied. The ultrafine-grained FC steels with various cementite volume fractions between 0.3 and 13.7% and average ferrite grain size of about 0.25 μm were prepared by carbon steels.
Tsuchida, Noriyuki   +3 more
openaire   +2 more sources

Formation of Cementite from Titanomagnetite Ore

open access: yes, 2006
This paper examines the formation of cementite in reduction of titanomagnetite ore by methane-containing gas. The reduction of titanomagnetite ore (New Zealand ironsand) by hydrogen–methane–argon gas mixtures was investigated from 600 to 1 100°C.
Oleg Ostrovski (20030007)   +2 more
core  

Effect of Carbon on Adherence of Low-Carbon Enameled Steel

open access: yesTeshugang, 2020
Adherence is a key indicator to characterize bonding strength between porcelain glaze and steel sheet. With different carbon content in the low-carbon enameled steel (/% ;0.020 ~0.050C,0.004 ~0.039Si,0.12 〜0.24Mn,0.008 ~ 0.024P,0.002 ~ 0.007S,0. 0026 ~0.
张丽琴   +4 more
doaj  

Effect of Cu Addition Above the Solubility Limit on Microstructure Formation and Cu Segregation in 800 MPa Grade Ductile Cast Iron During Solidification [PDF]

open access: yesArchives of Metallurgy and Materials
In this study, the effect of 3 mass%Cu additions on microstructure formation and Cu segregation in 800 MPa grade ductile cast iron during solidification was investigated.
Sang-Yun Shin   +3 more
doaj   +1 more source

Stability of Cementite formed from Hematite and Titanomagnetite Ore

open access: yes, 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 500oC to 900oC for the hematite ore and 300oC to 1100oC for titanomagnetite.
Oleg Ostrovski (20030007)   +3 more
core  

Aço ABNT 1045 esferoidizado: estudo da cinética de coalescimento e correlações entre microestruturas e propriedades mecânicas [PDF]

open access: yes, 2001
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Ciência e Engenharia de MateriaisEste trabalho teve por objetivo estudar o processo de recozimento de esferoidização de um aço SAE 1045 e ...
Rocha, Marcio Roberto da
core  

Electropulse-induced cementite nanoparticle formation in deformed pearlitic steels [PDF]

open access: yes, 2011
Passing one electric-current pulse through deformed pearlitic steel wires at room temperature causes the formation of cementite particles around 30 nm in size.
A. Bhowmik   +5 more
core   +1 more source

Ferrite-to-Austenite and Austenite-to-Martensite Phase Transformations in the Vicinity of a Cementite Particle: A Molecular Dynamics Approach

open access: yesMetals, 2018
We used classical molecular dynamics simulation to study the ferrite–austenite phase transformation of iron in the vicinity of a phase boundary to cementite.
Jerome Meiser, Herbert M. Urbassek
doaj   +1 more source

Influence of Silicon on the Spheroidization of Cementite in Hypereutectoid Bearing Steels

open access: yes, 2010
The influence of silicon on the spheroidization of cementite in hypereutectoid 1.0C-1.45Cr bearing steels has been investigated, on the basis of microstructural analysis and thermodynamic calculations.
Kwan Ho Kim, Jae Seung Lee, Duk Lak Lee
core   +1 more source

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