Results 41 to 50 of about 4,141 (224)

Stability of a Lamellar Structure – Effect of the True Interlamellar Spacing on the Durability of a Pearlite Colony / Stabilność Struktury Płytkowej – Wpływ Rzeczywistej Odległości Międzypłytkowej Na Trwałość Kolonii Perlitu

open access: yesArchives of Metallurgy and Materials, 2015
A lamellar microstructure is, beside a granular and dispersive one, the most frequently observed microstructure in the case of metal alloys. The most well-known lamellar microstructure is pearlite, a product of a eutectoidal transformation in the Fe-Fe3C
Czarski A., Skowronek T., Matusiewicz P.
doaj   +1 more source

Influence of Steel Recycling on Phase Transformation in Medium‐Manganese Third‐Generation Advanced High‐Strength Steels

open access: yessteel research international, EarlyView.
On the pathway to climate‐neutral steel production, recycling fractions will necessarily increase over time. Since alloying elements will enrich progressively, as they cannot be removed economically from the melt, processes need to be adjusted.
Anindita Chakraborty   +3 more
wiley   +1 more source

Comprehensive improvement of corrosion resistance and strength of ferrite-pearlite low alloy steel by cementite spheroidization treatment

open access: yesJournal of Materials Research and Technology, 2023
In this work, the cementite spheroidization was realized by quenching and high-temperature tempering, which improved the anti-corrosion performance and strength of ferrite-pearlite low alloy steel.
Hu Liu   +3 more
doaj   +1 more source

Alteration of Phase Transformation Behavior and Prior Austenite Grain Structure Due to Elevated Tramp Element Concentrations in a Hypoeutectoid Steel

open access: yessteel research international, EarlyView.
The phase transformation behavior of a hypoeutectoid steel is studied in comparison with alloys containing higher concentrations of tramp elements, simulating high recycling rates. The examination of microstructures reveals that the tramp elements facilitate the formation of displacive phases along with retained austenite.
Lukas Hatzenbichler   +7 more
wiley   +1 more source

The Role of Microstructure in High Temperature Tribology of Iron Alloys [PDF]

open access: yesArchives of Metallurgy and Materials, 2018
The present paper describe the issue of tool materials wear in a high temperature conditions. The investigations were performed at the cast steel tool material at the tribological contact to the structural steel.
J. Krawczyk   +6 more
doaj   +1 more source

Structural Phase Transformation of Rail Steel in Compression

open access: yesMetals, 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   +4 more
doaj   +1 more source

Influence of Higher Tramp Element Level on the Weldability of Automotive Steels

open access: yessteel research international, EarlyView.
The use of green recycled steels is constantly expanding in the automotive industry. The increase in tramp elements resulting from the recycling of steel is problematic. Tramp elements can lead to a negative influence on the weldability. To understand the influence, the welding properties of three green steels are characterized. The potential limits of
Elias Gebhard Vogt   +6 more
wiley   +1 more source

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

open access: yesArchives 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

Cementite Formation in CH4-H2-Ar Gas Mixture and Cementite Stability.

open access: yesISIJ International, 2001
Iron ore reduction/cementation by CH 4 -H 2 -Ar gas (35vol% CH 4 , 55vol% H 2 and 10 vol% Ar) was examined in a fixed bed reactor in the temperature range of 600-925°C. Iron oxides were first reduced to metallic iron and then iron was carburised to cementite.
Zhang, Jianqiang, Ostrovski, O.
openaire   +2 more sources

Using Thermodynamics and Microstructure to Mitigate Overfitting in Pellet Reduction Models

open access: yessteel research international, EarlyView.
A in time and space discretized, thermodynamically sound model for direct reduction of iron oxide pellets is described. The number of fitting parameters is drastically reduced compared to existing models. Nevertheless, fitting kinetic parameters based on conversion degree data alone leads to overfitting, which can be mitigated by correlating the ...
Ömer K. Büyükuslu   +4 more
wiley   +1 more source

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