The recrystallization assisted microstructural changes during cyclic heat exposure are surmised detrimental to the thermal fatigue resistance of tungsten monoblocks that cover surface divertor components a nuclear fusion reactor. A numerical framework predict in is presented this work. based on model coupled Johnson-Mehl-Avrami-Kolomogorov (JMAK) type model. influence initial (starting) state, ...

Two models of recrystallization are proposed taking into account the convective flux impurity exchange between polycrystalline and thin-film coating. The special boundary modes described by single-phase two-phase Stefan problems with condition at coated surface containing term. exact solutions formulated corresponding to grain-boundary concentration impurities obtained. detail theoretical analy...

The development of recrystallization textures in two low carbon steels used for deep drawing has been investigated through measurements of global textures (by X-Ray diffraction) and local orientations (by EBSD, Electron Back Scattering Diffraction). The global measurements allow a quantitative description of the recrystallization textures whereas the local measurements allow to identify some of...

In this study, the grain boundary evolution of equiatomic CoCrFeMnNi, CoCrFeNi, and FeCoNi alloys after one-step recrystallization were investigated. The special boundary fraction and twin density of these alloys were evaluated by electron backscatter diffraction analysis. Among the three alloys tested, FeCoNi exhibited the highest special boundary fraction and twin density after one-step recry...

Solid-state properties of piroxicam benzoate, an ester prodrug of piroxicam, were investigated. Samples were prepared by recrystallization from various organic solvents (toluene, ethanol, methanol, ethyl acetate and acetone). Recrystallized samples were characterized by means of FTIR, DSC, TGA, SEM and XRPD. DSC, TGA and XRPD methods confirmed that piroxicam benzoate crystallized in two pseudop...

An attempt will be made to give an overview of the main areas of actual interest with respect to recent progress and to future prospects in the respective fields. In this connection the following areas are treated: The kind of material and the initial thermodynamical unstable state; the basic processes during heating up of a sample: recovery, nucleation, grain boundary migration; the end produc...

Secondary recrystallization id grain-oriented silicon steel is studied by the high-temperature background damping. Abnormal grain growth involves an abrupt drop of the background. The temperatures of initiation and completion of the secondary recrystallization are, thus, determined for the sane sample from the definite change in background with increasing temperature. The background measured on...

Short pulse laser melting and resolidification of a metal target are investigated in continuum and atomistic computer simulations. The cooling rates achievable in laser quenching are calculated within the framework of two-temperature model for a range of laser fluences and pulse durations. A well-defined maximum in the cooling rate dependence on the pulse duration and fluence is observed and ex...

During recrystallization, dislocation-poor grains grow and invade the heavily deformed dislocation-rich matrix. In this work, we develop a coupled dislocation density and phase-field method to model the isothermal recrystallization process as a phase transformation, driven by the stored elastic energy. Dislocations are represented in two spatial dimensions in terms of a continuous Burgers vecto...