Results 1 to 10 of about 4,950 (183)

Design concept and phase transformation study of advanced bainitic-austenitic medium-Mn steel [PDF]

open access: yesScientific Reports
The isothermal heat treatment processing routes are designed for a novel 0.17 C-3.1Mn-1Si-0.55Al-0.22Mo-0.034Ti-0.073 V steel, aiming to obtain a homogeneous fine lath-type microstructure consisting of bainitic ferrite and retained austenite (RA).
Anna Wojtacha   +6 more
doaj   +2 more sources

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

Effect of ausforming on the bainitic transformation and microstructure in medium carbon V–N micro-alloyed steel

open access: yesJournal of Materials Research and Technology, 2023
Ausforming at 900 °C with 30% reduction in V and N micro-alloyed steel could induce VN precipitation, which has low lattice misfit (1.8%) with bainitic ferrite in a particular crystal orientation.
Xiaojie Zhao   +4 more
doaj   +1 more source

Effect of Chromium on Microstructure and Mechanical Properties of Hot-Dip Galvanized Dual-Phase (DP980) Steel

open access: yesCrystals, 2023
Generally, the addition of Chromium (Cr) into the dual-phase (DP) steels can suppress bainitic transformation. In this work, the continuous hot-dip galvanization of DP980 steel is thermally simulated with various Cr contents of 0/0.3/0.6 wt.%, and the ...
Xuefei Chen   +6 more
doaj   +1 more source

In situ observation of bainitic transformation behavior in medium carbon bainitic steel

open access: yesJournal of Materials Research and Technology, 2022
The bainitic transformation behavior of samples with different scales was observed with dilatometer (DIL), high-temperature laser scanning confocal microscope (LCSM), and environmental transmission electron microscope (ETEM).
Xiaojie Zhao   +4 more
doaj   +1 more source

Effect of ausforming on microstructure and hardness characteristics of bainitic steel

open access: yesJournal of Materials Research and Technology, 2020
Effects of process parameters of the ausforming such as temperature, strain and strain rate on the martensitic start temperature, kinetics of isothermal bainitic transformation and microstructure refinement of a low carbon carbide-free bainitic steel ...
Theerawat Kumnorkaew   +3 more
doaj   +1 more source

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

Towards the ab initio based theory of the phase transformations in iron and steel [PDF]

open access: yes, 2017
Despite of the appearance of numerous new materials, the iron based alloys and steels continue to play an essential role in modern technology. The properties of a steel are determined by its structural state (ferrite, cementite, pearlite, bainite ...
Gornostyrev, Yu. N.   +2 more
core   +7 more sources

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