Results 21 to 30 of about 1,345 (212)

Investigation of the bainitic reaction in a CuAlNiMnFe shape memory alloy [PDF]

open access: yesJournal of Mining and Metallurgy. Section B: Metallurgy, 2013
Despite their favorable properties, brittle nature of the CuAlNi shape memory alloys limits their suitability. To increase their ductility, Mn and Fe were added to the base CuAlNi alloy.
Benke M., Mertinger V., Pekker P.
doaj   +1 more source

Effect of isothermal and pre-transformation temperatures on microstructure and properties of ultrafine bainitic steels

open access: yesJournal of Materials Research and Technology, 2021
The effects of isothermal and pre-transformation temperatures on the microstructure and mechanical properties of ultrafine bainitic steels are investigated and theoretically analyzed by using optical microscopy, scanning electron microscopy, transmission
Chengcong Huang   +4 more
doaj   +1 more source

In-situ observation of phase transformation during heat treatment process of high-carbon bainitic bearing steel

open access: yesJournal of Materials Research and Technology, 2022
Phase transformation during austenitizing process and heat treatment process under slow cooling of high-carbon bainitic bearing steel is still unclear. Direct nano-scale microscopic observation and in-situ X-ray diffraction investigations have been used ...
Dongyun Sun   +6 more
doaj   +1 more source

Three-Dimensional Observation of Upper Bainite in the Initial Stage of Transformation in 0.4 wt%C TRIP Steel

open access: yesMetals, 2023
Three-dimensional microstructures of bainitic ferrites and prior austenite grains (PAGs) were observed in the initial stage of upper bainite transformation by using a serial sectioning technique and orientation analysis by electron back scattering ...
Shotaro Jimbo, Shoichi Nambu
doaj   +1 more source

Stability of retained austenite and work hardening behavior in ultra-fine medium carbon bainitic steel

open access: yesJournal of Materials Research and Technology, 2023
The effect of retained austenite stability on plastic deformation was investigated by stepwise tensile test of medium carbon steel material at two different bainite isothermal temperatures below or above the martensite start (Ms) point.
Tingting He   +5 more
doaj   +1 more source

Effect of austempering temperature on the microstructure and wear resistance of ultrafine bainitic steel

open access: yes工程科学学报, 2018
Ultrafine bainitic steels, which are derived from nanostructured carbide-free bainitic steels, exhibit a remarkable combination of ultra-high strength and toughness together with excellent wear resistance. Their excellent integrated mechanical properties
ZHANG Chao   +4 more
doaj   +1 more source

Modeling Bainitic Transformations during Press Hardening [PDF]

open access: yesMaterials, 2021
We revisit recent findings on experimental and modeling investigations of bainitic transformations under the influence of external stresses and pre-strain during the press hardening process. Experimentally, the transformation kinetics in 22MnB5 under various tensile stresses are studied both on the macroscopic and microstructural level. In the bainitic
Mingxuan Lin   +5 more
openaire   +4 more sources

Transferring Nanoscale Bainite Concept to Lower C Contents: A Perspective

open access: yesMetals, 2017
The major strengthening mechanisms in bainitic steels arise from the bainitic ferrite plate thickness rather than the length, which primarily determines the mean free slip distance.
Carlos Garcia-Mateo   +7 more
doaj   +1 more source

Investigating the Difference in Mechanical Stability of Retained Austenite in Bainitic and Martensitic High-Carbon Bearing Steels using in situ Neutron Diffraction and Crystal Plasticity Modeling

open access: yesMetals, 2019
In situ neutron diffraction of the uniaxial tension test was used to study the effect of the surrounding matrix microstructure on the mechanical stability of retained austenite in high-carbon bearing steels.
Rohit Voothaluru   +6 more
doaj   +1 more source

Assessing the scale contributing factors of three carbide-free bainitic steels: A complementary theoretical and experimental approach

open access: yesMaterials & Design, 2021
The bainitic ferrite plate thickness is the main parameter that controls the strength of this type of microstructures. Such thickness has been proved to mainly depend on the austenite yield strength, the driving force for the transformation and the ...
Adriana Eres-Castellanos   +6 more
doaj   +1 more source

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