Results 61 to 70 of about 67,459 (314)
Ostwald Ripening of Diffusion-Limited Small-Size Precipitates at Grain Boundaries [PDF]
Журнал нано- та електронної фізики, 2012 The paper describes a theoretical study of the Ostwald ripening of two-dimensional small-size precipitates of a newly formed phase at the grain boundary of finite thickness, taking into account the diffusion of impurity atoms from the grain interior to ...
A.V. Koropov
doaj
Ceramics-Silikáty, 2016 The overall conductivity of crystalline lithium ion conductors is generally low due to the large grain boundary resistance. In order to improve the grain boundary conductivity, NASICON structured Li1+xAlxSn2-x(PO₄)₃ has been studied in this paper ...
Xiaojuan Lu, Huining Xiao
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Advanced Engineering Materials, EarlyView.The role of various alloying elements in face‐centered cubic aluminum on the barrier of a Shockley partial dislocation during its motion is presented. The study aims to understand how alloying atoms such as Mg, Si, and Zr affect the energy landscape for dislocation motion, thus influencing the solid solution hardening and softening in aluminum, which ...
Inna Plyushchay +3 more
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Advanced Engineering Materials, EarlyView.This study presents a 3D representative volume element‐based simulation approach to predict mesoscopic residual stress and strain fields in silicon solid solution‐strengthened ductile cast iron. By modeling phase transformation kinetics with an enhanced Johnson–Mehl–Avrami–Kolmogorov model, the effects of varying cooling rates on residual stresses are ...
Lutz Horbach +6 more
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Wetting Effects at a Grain Boundary
Physical Review Letters, 2004 We consider a tier of weakened bonds along the center line of a two-dimensional Ising ferromagnet strip as a model of a grain boundary. When an interface traverses such a strip at an angle, whether or not there is a continuous pinning-depinning transition at subcritical temperature depends on this angle and the degree of bond weakening.
Douglas B. Abraham +3 more
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Advanced Engineering Materials, EarlyView.The functional properties of Fe–Mn–Si–Cr‐based shape memory alloys are influenced, among other things, by their chemical composition. Here, the vaporization of Mn, the most volatile element of the alloy, is investigated. It is shown that the process parameters make noninterchangeable contributions to the vaporization and that vaporization differences ...
Maylin Homfeldt, Anastasiya Toenjes
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Kinetics of Grain Boundary Networks Controlled by Triple Junction and Grain Boundary Mobility
Metals, 2018 The kinetics of a triple junction of grain boundaries with distinct specific energies and mobilities and a finite mobility of the triple junction is investigated.
Ernst Gamsjäger +2 more
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Science and Technology of Advanced Materials, 2020 We present a computational approach for identifying the important descriptors of the ionic conductivities of lithium solid electrolytes. Our approach discriminates the factors of both bulk and grain boundary conductivities, which have been rarely ...
Yen-Ju Wu +8 more
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REARRANGEMENTS IN THE SYSTEM OF GRAIN BOUNDARY DISLOCATIONS AND MIGRATION OF GRAIN BOUNDARIES
Le Journal de Physique Colloques, 1990 The dislocation structure and behaviour of grain boundaries in a low strained nickel alloy under slow and fast continuous heating was studied. It is established that the processes of grain boundary migration and dissociation of grain boundaries start (on a macroscale) not with the disappearance of electron microscopic contrast due to extrinsic grain ...
L.K. Fionova, M.F. Imayev
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Advanced Engineering Materials, EarlyView.A new experimental setup, incorporating digital image correlation and infrared thermography in combination with inductive‐conductive heating for precise temperature control, is used to analyze the mechanical behavior and microstructural changes of sheet metal under complex thermomechanical test conditions that represent quench and partitioning ...
Christian Illgen +4 more
wiley +1 more source