Features of bicrystal growth during the directional crystallization of metal melts
- 作者: Gubernatorov V.1, Sycheva T.1, Gundyrev V.1, Akshentsev Y.1
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隶属关系:
- M.N. Mikheev Institute of Metal Physics, Ural Branch
- 期: 卷 62, 编号 2 (2017)
- 页面: 336-341
- 栏目: Crystal Growth
- URL: https://journals.rcsi.science/1063-7745/article/view/190927
- DOI: https://doi.org/10.1134/S1063774517020134
- ID: 190927
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详细
The factors responsible for the formation of different configurations of boundaries between adjacent crystallites during their growth from melt by Bridgman and Czochralski methods have been considered by an of example Fe–20 wt % Ga alloy and Ni bicrystals. It is found that the configuration of intercrystallite boundary is related to the features of crystallite growth, caused by the strained state of intercrystallite and interphase (crystal–melt) boundaries, the difference in the linear thermal expansion coefficients of the crystallite boundaries and bulk, and the shape (geometry) of the bicrystal cross section. It is suggested that the strained state of boundaries and the formation of substructure in crystallites during directional crystallization from metal melt are significantly affected by their deformation under the melt weight.
作者简介
V. Gubernatorov
M.N. Mikheev Institute of Metal Physics, Ural Branch
Email: sych@imp.uran.ru
俄罗斯联邦, Yekaterinburg, 620137
T. Sycheva
M.N. Mikheev Institute of Metal Physics, Ural Branch
编辑信件的主要联系方式.
Email: sych@imp.uran.ru
俄罗斯联邦, Yekaterinburg, 620137
V. Gundyrev
M.N. Mikheev Institute of Metal Physics, Ural Branch
Email: sych@imp.uran.ru
俄罗斯联邦, Yekaterinburg, 620137
Yu. Akshentsev
M.N. Mikheev Institute of Metal Physics, Ural Branch
Email: sych@imp.uran.ru
俄罗斯联邦, Yekaterinburg, 620137