Results 31 to 40 of about 2,349 (182)

Study on the Nucleation and Growth of Pearlite Colony and Impact Toughness of Eutectoid Steel

open access: yesMetals, 2019
The relationship between microstructure parameters and mechanical properties was studied in this paper. The steel was heat-treated at different austenitizing temperatures to acquire varying microstructure.
Fei Zhang   +4 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

Unraveling the Friction and Wear Mechanisms of a Medium-Carbon Steel with a Gradient-Structured Surface Layer

open access: yesLubricants
This study investigates the enhancement of tribological performance in coarse-grained (CG) 42CrMo steel through the development of gradient-structured (GS) samples using double-sided symmetrical surface mechanical rolling treatment (D-SMRT).
Huaming Zhang   +5 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

Effect of Hydrogen on Crack Initiation and Propagation in Pearlitic Structures: A Molecular Dynamics Study

open access: yesHydrogen
The pearlitic microstructure, comprising alternating lamellae of ferrite and cementite, provides a favorable combination of strength, toughness, and wear resistance.
Ivaylo H. Katzarov
doaj   +1 more source

Thermodynamic Modeling of Sn–C and Fe–Sn–C Systems for the Tramp Elements Control in Steel Production

open access: yessteel research international, EarlyView.
A CALculation of PHAse Diagrams thermodynamic modeling for Fe–Sn–C system is carried out. The model and the developed database can be used to calculate phase diagrams and thermodynamic properties of this system over wide temperature/composition range, and a part of a larger thermodynamic database for steel and alloy system, and effectively used to ...
Won‐Bum Park   +2 more
wiley   +1 more source

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

Measurements of the spread in pearlite spacings

open access: yesMetallography, 1986
Mesure statistique par microscopie electronique a transmission de l'espace interlamellaire durant la croissance de perlite dans l'acier perlitique microallie de composition (% poids).
Tilbury, J, Mottishaw, T, Smith, G
openaire   +2 more sources

Alloy Qualification for Producing Quench and Tempered Plate Steels with Extra‐Heavy Gage

open access: yessteel 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   +5 more
wiley   +1 more source

Exploiting Residual Elements Arising from Scrap Steel in Future Sustainable Steel Alloy Design

open access: yessteel 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   +5 more
wiley   +1 more source

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