Autor: Zhou, Li - Prolib Integro

Skocz do pozycji: 1.

Tytuł:: Numerical Simulation of Solidification Microstructure based on Adaptive Octree Grids
Autorzy:: Yin, Y.
Li, Y.
Wu, K.
Zhou, J.
Tematy:: isothermal solidification
binary alloy
numerical simulation
phase field model
microsegregation
microstructure
krzepnięcie izotermiczne
stop dwuskładnikowy
symulacja numeryczna; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/947350.pdf Link otwiera się w nowym oknie
Opis:: The main work of this paper focuses on the simulation of binary alloy solidification using the phase field model and adaptive octree grids. Ni-Cu binary alloy is used as an example in this paper to do research on the numerical simulation of isothermal solidification of binary alloy. Firstly, the WBM model, numerical issues and adaptive octree grids have been explained. Secondary, the numerical simulation results of three dimensional morphology of the equiaxed grain and concentration variations are given, taking the efficiency advantage of the adaptive octree grids. The microsegregation of binary alloy has been analysed emphatically. Then, numerical simulation results of the influence of thermo-physical parameters on the growth of the equiaxed grain are also given. At last, a simulation experiment of large scale and long-time has been carried out. It is found that increases of initial temperature and initial concentration will make grain grow along certain directions and adaptive octree grids can effectively be used in simulations of microstructure.
Dostawca treści:: Biblioteka Nauki

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Tytuł:: Effect of Sulfur and Acid Soluble Aluminum Content on Precipitate and Microstructure of Grain-Oriented Silicon Steel
Autorzy:: Zhou, B.
Zhu, C.
Li, G.
Luo, Z.
Gao, Y.
Bao, S.
Schneider, J.
Tematy:: grain oriented silicon steel
sulfur
acid soluble aluminum
precipitate
microstructure
texture; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/354451.pdf Link otwiera się w nowym oknie
Opis:: The combined effect of sulfur (S) and acid soluble aluminum (Al_s ) content on precipitates and microstructures in grain-oriented silicon steel were investigated. The results show that there are dominant AlN and a little amount of MnS-AlN composite in annealed hot-rolled band, and the amount of precipitates increases distinctly with increasing Al_s content, while S content plays a negligible role. The inhibitors that precipitate during hot band annealing can restrain the grain growth during hot band annealing and primary annealing, and the smaller grains of annealed hot-rolled band can contribute to the formation of {111} <112> texture during primary annealing. Lower S content is conducive to the formation of {111} <112> texture during primary annealing by promoting the formation of Goss texture during hot rolling.
Dostawca treści:: Biblioteka Nauki

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