Results 11 to 20 of about 123 (110)

Multiphase Ausformed Austempered Ductile Iron [PDF]

open access: yesArchives of Metallurgy and Materials, 2017
Ductile iron was subjected to a total true strain (φt) of 0.3 either by applying φt in the austenite region or by apportioning it through applying a true strain of 0.2 in the austenite region before quenching to austempering temperature (TA) of 375°C ...
Soliman M., Palkowski H., Nofal A.
doaj   +2 more sources

Transfer of Ausforming Parameters TO SCALED Forging tools [PDF]

open access: yesMETAL Conference Proeedings, 2021
Forging tools are exposed to cyclically changing thermo-mechanical stress conditions leading to its failure. Damage phenomena on the tool engraving cannot be entirely avoided by hardening the surface, as this leads to a more brittle behaviour and thus to lower ductility of the material, which can intensify the occurring damage effects.
Behrens, Bernd-Arno   +4 more
openaire   +1 more source

Microstructure Refinement by Low-Temperature Ausforming in an Fe-Based Metastable High-Entropy Alloy

open access: yesMetals, 2021
The effects of ausforming in an Fe30Mn10Cr10Co high-entropy alloy on the microstructure, hardness, and plastic anisotropy were investigated. The alloy showed a dual-phase microstructure consisting of face-centered cubic (FCC) austenite and hexagonal ...
Motomichi Koyama   +2 more
doaj   +1 more source

Influence of Ausforming Treatment on Super Elasticity of Cu-Zn-Al Shape Memory Alloy for Seismic Energy Dissipaters

open access: yesBuildings, 2021
In order to develop the application of the more cost-effective copper-based shape memory alloys (SMAs), rather than nickel–titanium as earthquake energy dissipaters, the influence of ausforming-induced plastic deformation on phase transformations ...
Danko Ćorić, Irena Žmak
doaj   +1 more source

Effect of two-step ausforming on bainite transformation and retained austenite in a medium-carbon bainitic steel

open access: yesMaterials Research Express, 2020
It is commonly accepted that single ausforming with small strain at low temperature promotes isothermal bainite transformation and leads to more retained austenite.
Guanghui Chen   +5 more
doaj   +1 more source

Effect of Ausforming on Retained Austenite After Continuous Cooling Transformation in a Medium-Carbon High Strength Steel [PDF]

open access: yesMaterials Research, 2020
The effects of deformation on transformation kinetics during continuous cooling and microstructure evolution of a medium carbon high strength steel were investigated by metallographic method, dilatometry and X-ray diffraction etc.
Man Liu   +4 more
doaj   +1 more source

Analysis on the Key Parameters to Predict Flow Stress during Ausforming in a High-Carbon Bainitic Steel

open access: yesMetals, 2023
Since flow stress is an important parameter in the processing and application of metallic materials, it is necessary to trace the flow stress during austenite deformation. Thermal compression deformation of austenite in a high-strength bainitic steel was
Lifan Wang   +5 more
doaj   +1 more source

Creep strength boosted by a high-density of stable nanoprecipitates in high-chromium steels

open access: yesEuropean Journal of Materials, 2023
There is a need worldwide to develop materials for advanced power plants with steam temperatures of 700°C and above that will achieve long-term creep-rupture strength and low CO2 emissions.
Javier Vivas   +9 more
doaj   +1 more source

Effect of the ausforming deformation mode on bainitic transformation in a medium carbon high silicon steel

open access: yesJournal of Materials Research and Technology, 2022
Ausforming treatments are thermomechanical treatments that consist in plastically deforming a fully austenitized steel, usually leading to either a bainitic or a martensitic microstructure.
Adriana Eres-Castellanos   +6 more
doaj   +1 more source

Tempforming as an Advanced Processing Method for Carbon Steels

open access: yesMetals, 2020
The microstructural mechanisms providing delamination toughness in high-strength low-alloyed steels are briefly reviewed. Thermo-mechanical processing methods improving both the strength and impact toughness are described, with a close relation to the ...
Anastasiya Dolzhenko   +2 more
doaj   +1 more source

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