Results 11 to 20 of about 148,518 (267)

Effect of Peak Temperatures on Microstructure and Properties of Welding Coarse Grain Heat-Affected Zone of SA508 Gr.4N Steel

open access: yesMetals, 2022
The effect of peak temperatures on the grain growth, microstructure transformation and Vickers hardness of the weld coarse grain heat-affected zone (CGHAZ) of SA508 Gr.4N steel for nuclear reactor pressure vessel was studied.
Shumeng Lu   +6 more
doaj   +1 more source

The Effect of Sintering Additive on Grain Growth in UO2 Nuclear Fuel Pellet [PDF]

open access: yesمجله علوم و فنون هسته‌ای, 2018
In this work, a powder with specific chemical and physical characteristics was used and the effect of different additives on grain growth and densification of UO2 pellets were studied.
R A. Rahimi, M Iravani, M Mohammadifar
doaj   +1 more source

Grains, Growth, and Grooving

open access: yesPhysical Review Letters, 2003
We report the in situ investigation of grain growth and grain boundary migration, performed with a variable-temperature scanning tunneling microscope (STM) on a polycrystalline gold film. Atomic step resolution allowed us to identify the individual grains and, thus, also the grain boundaries.
Rost, M.J., Quist, D.A., Frenken, J.W.M.
openaire   +5 more sources

On the Grain Growth Kinetics of a Low Density Steel

open access: yesMetals, 2019
The grain growth kinetics of an age-hardenable Fe-Mn-Al-C steel were investigated. Kinetics of grain growth were determined between 1173 and 1348 K (900−1075 °C) to obtain a range of grain sizes from 30 to 475 μm.
Daniel M. Field   +2 more
doaj   +1 more source

A kinetic model for grain growth

open access: yesKinetic & Related Models, 2008
We provide a well-posedness analysis of a kinetic model for grain growth introduced by Fradkov which is based on the von Neumann-Mullins law. The model consists of an infinite number of transport equations with a tri-diagonal coupling modelling topological changes in the grain configuration.
Henseler, R   +3 more
openaire   +2 more sources

Grain growth and grain translation in crystals [PDF]

open access: yesActa Materialia, 2016
Grain growth is generally driven to minimize the overall grain boundary energy. However, for low-angle grain boundaries the requirement that lattice planes be continuous across the boundary gives rise to a coupling between the normal motion of the grain boundary and the tangential motion of the lattice.
Kevin McReynolds   +2 more
openaire   +1 more source

Dynamically Recrystallized Microstructures, Textures, and Tensile Properties of a Hot Worked High-Mn Steel

open access: yesMetals, 2019
The deformation microstructures and mechanical properties were studied in a high-Mn steel subjected to hot compression. The deformation microstructures resulted from the development of dynamic recrystallization (DRX).
Pavel Dolzhenko   +3 more
doaj   +1 more source

Experimental and Numerical Simulations of the Solidification Process in Continuous Casting of Slab

open access: yesMetals, 2016
Thermal simulation equipment (TSE) was recently developed to simulate the solidification process in the industrial continuous casting of slab. The grain growth, solid-liquid interface movement, and columnar-to-equiaxed transition (CET) in the continuous ...
Liang Bai   +5 more
doaj   +1 more source

Characterization of metals in four dimensions

open access: yesMaterials Research Letters, 2020
The ability to watch the three-dimensional (3D) evolution of structural materials is a breakthrough in non-destructive characterization. In particular, X-ray tomographic imaging techniques have found success in revealing the underlying mechanisms of ...
Ashwin J. Shahani   +3 more
doaj   +1 more source

A Study on the Hall–Petch Relationship and Grain Growth Kinetics in FCC-Structured High/Medium Entropy Alloys

open access: yesEntropy, 2019
The recrystallization behavior, grain growth kinetics, and corresponding hardness variation of homogenized and 80% cold-rolled FeCoNiCrPd, FeCoNiCrMn, and their quaternary/ternary FCC-structured high/medium entropy alloys (H/MEAs) annealed under ...
Yung-Chien Huang   +3 more
doaj   +1 more source

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