Results 31 to 40 of about 8,403 (202)

Austenite Grain Size Estimation in Structural Steels by Linear Section Method / Ocena Wielkości Ziarna Austenitu Metodą Przekrojów Liniowych

open access: yesArchives of Metallurgy and Materials, 2015
Linear section of grains in polyhedral material microstructure is a system of chords on a test line. The mean chord length is the linear grain size of the material. In the prior austenite microstructure of low alloy structural steels, the chord length is
Adrian H., Wiencek K.
doaj   +1 more source

Effect of Double-Quenching on the Hardness and Toughness of a Wear-Resistant Steel

open access: yesMetals, 2022
Martensitic/bainitic wear-resistant steels are widely used in civilian industry, where a good combination of strength and toughness is required. In the present study, a double-quenching process was applied and compared to the conventional single ...
Jingliang Wang   +3 more
doaj   +1 more source

Hot ductility and deformation behavior of C-Mn/Nb-microalloyed steel related to cracking during continuous casting [PDF]

open access: yes, 2014
Hot ductility studies have been performed on C-Mn and C-Mn-Nb steels with an approach to simulate the effect of cooling conditions experienced by steel in secondary cooling zone during continuous casting.
Lanjewar, Harishchandra   +3 more
core   +1 more source

Effects of Electropulsing Treatment on the Microstructure and Mechanical Property of M2 High-speed Steel [PDF]

open access: yesTeshugang
Using conventional heat treatment combined with electrical pulse treatment (abbreviated EPT) ,the M2 high-speed steel was processed and the microstructure was observed using microscope, SEM and EBSD, the bending resistance of the specimen was tested. The
Zhang Jiatao, Liu Zhaohua, Ye Lirun
doaj   +2 more sources

A comprehensive study on the microstructure and mechanical properties of arc girth welded joints of spiral welded high strength API X70 steel pipe [PDF]

open access: yes, 2020
In the paper, the effect of welding technology on the microstructure and mechanical properties of girth welded joints was presented. Metallographic examinations based on light microscopy and SEM were conducted on girth welded joints of API X70 steel pipe.
De Waele, Wim   +6 more
core   +1 more source

Exploring the Difference in Bainite Transformation with Varying the Prior Austenite Grain Size in Low Carbon Steel

open access: yesMetals, 2018
The simulation welding thermal cycle technique was employed to generate different sizes of prior austenite grains. Dilatometry tests, in situ laser scanning confocal microscopy, and transmission electron microscopy were used to investigate the role of ...
Liangyun Lan, Zhiyuan Chang, Penghui Fan
doaj   +1 more source

Austenite formation from a steel microstructure containing martensite/austenite and bainite bands

open access: yesJournal of Materials Research and Technology, 2023
In many commercial steel processing routes, steel microstructures are reverted to an austenitic condition prior to the final processing steps. Understanding the microstructure development during austenitization is crucial for improving the performance ...
J. Abraham Mathews   +3 more
doaj   +1 more source

Physical metallurgy of modern creep-resistant steel for steam power plants: microstructure and phase transformations [PDF]

open access: yes, 2016
The fact that the microstructure of steel depends on its composition and the heat treatment given to it has been heavily exploited in the design of steel for power plant applications.
Igwemezie, Victor C.   +2 more
core   +3 more sources

Shear-induced α → γ transformation in nanoscale Fe-C composite [PDF]

open access: yes, 2006
High-resolution transmission electron microscopy and three-dimensional atom probe observations show clearly that a reverse transformation of body-centred cubic ferrite to face-centred cubic austenite occurs during severe plastic deformation of a ...
Fecht, H.-J.   +4 more
core   +1 more source

Control of Upstream Austenite Grain Coarsening during the Thin-Slab Cast Direct-Rolling (TSCDR) Process

open access: yesMetals, 2019
Thin-slab cast direct-rolling (TSCDR) has become a major process for flat-rolled production. However, the elimination of slab reheating and limited number of thermomechanical deformation passes leave fewer opportunities for austenite grain refinement ...
Tihe Zhou   +5 more
doaj   +1 more source

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