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.
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Effect of Double-Quenching on the Hardness and Toughness of a Wear-Resistant Steel
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
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Hot ductility and deformation behavior of C-Mn/Nb-microalloyed steel related to cracking during continuous casting [PDF]
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
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Effects of Electropulsing Treatment on the Microstructure and Mechanical Property of M2 High-speed Steel [PDF]
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
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A comprehensive study on the microstructure and mechanical properties of arc girth welded joints of spiral welded high strength API X70 steel pipe [PDF]
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
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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
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Austenite formation from a steel microstructure containing martensite/austenite and bainite bands
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
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Physical metallurgy of modern creep-resistant steel for steam power plants: microstructure and phase transformations [PDF]
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
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Shear-induced α → γ transformation in nanoscale Fe-C composite [PDF]
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
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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
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