A thermokinetic description of nano-scale grain growth under dynamic grain boundary segregation condition

Z. Chen; F. Liu; X. Q. Yang; C. J. Shen; Y. M. Zhao

doi:10.1016/j.jallcom.2014.04.137

A thermokinetic description of nano-scale grain growth under dynamic grain boundary segregation condition

Z. Chen, F. Liu, X. Q. Yang, C. J. Shen, Y. M. Zhao

材料学院

科研成果: 期刊稿件 › 快报 › 同行评审

20 引用（Scopus）

摘要

Under the dynamic grain boundary (GB) segregation state, an important thermokinetic transition stage between solute segregation and precipitation was considered. The thermokinetic model for nano-scale grain growth was extended by incorporating mixed effects of GB energy, activation energy and Zener drag. The application of the model in Fe-Cr and Nano-Fe alloys showed that formation of precipitation could accelerate the increase of GB energy and decrease of activation energy and finally induce to the second grain growth and second stabilization.

源语言	英语
页（从-至）	338-342
页数	5
期刊	Journal of Alloys and Compounds
卷	608
DOI	https://doi.org/10.1016/j.jallcom.2014.04.137
出版状态	已出版 - 25 9月 2014

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10.1016/j.jallcom.2014.04.137

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abstract = "Under the dynamic grain boundary (GB) segregation state, an important thermokinetic transition stage between solute segregation and precipitation was considered. The thermokinetic model for nano-scale grain growth was extended by incorporating mixed effects of GB energy, activation energy and Zener drag. The application of the model in Fe-Cr and Nano-Fe alloys showed that formation of precipitation could accelerate the increase of GB energy and decrease of activation energy and finally induce to the second grain growth and second stabilization.",

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AU - Chen, Z.

AU - Liu, F.

AU - Yang, X. Q.

AU - Shen, C. J.

AU - Zhao, Y. M.

PY - 2014/9/25

Y1 - 2014/9/25

N2 - Under the dynamic grain boundary (GB) segregation state, an important thermokinetic transition stage between solute segregation and precipitation was considered. The thermokinetic model for nano-scale grain growth was extended by incorporating mixed effects of GB energy, activation energy and Zener drag. The application of the model in Fe-Cr and Nano-Fe alloys showed that formation of precipitation could accelerate the increase of GB energy and decrease of activation energy and finally induce to the second grain growth and second stabilization.

AB - Under the dynamic grain boundary (GB) segregation state, an important thermokinetic transition stage between solute segregation and precipitation was considered. The thermokinetic model for nano-scale grain growth was extended by incorporating mixed effects of GB energy, activation energy and Zener drag. The application of the model in Fe-Cr and Nano-Fe alloys showed that formation of precipitation could accelerate the increase of GB energy and decrease of activation energy and finally induce to the second grain growth and second stabilization.

KW - Grain boundary energy

KW - Grain growth

KW - Nanocrystalline materials

KW - Precipitation

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JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

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