共 3 条
Dynamic process of trace boron non-equilibrium grain boundary segregation and the effect of cooling rate
被引:0
作者:
Ping Wu
Applied Science School
Editorial Department of J. Univ. Sci. Technol. Beijing
机构:
关键词:
boron;
grain boundary;
non-equilibrium segregation;
dynamic process;
D O I:
暂无
中图分类号:
O643 [化学动力学、催化作用];
学科分类号:
070304 ;
081704 ;
摘要:
The dynamic process of non-equilibrium grain boundary segregation of trace boron in Fe-40%Ni alloy during cooling and the effect of cooling rate were investigated by boron tracking autoradiography technique. The results indicate that during cooling process, the amount of segregated boron on grain boundary firstly increases fast, then enters a comparatively even increasing stage and increases rapidly again at the third stage. The details of each stage varied with cooling rate are explained. When the segregation develops to a certain degree, the segregated boron atoms transform from solute status to precipitate status.
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页码:30 / 34
页数:5
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