NON-EQUILIBRIUM SEGREGATION OF SOLUTE TO GRAIN BOUNDARIES

被引：0
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作者：
CHU Youyi ZHANG Sanhong HE Xinlai KE Jun(T.Ko) University of Science and Technology Beijing
机构：
来源：
Acta Metallurgica Sinica(English Letters) | 1990年 / 01期
关键词：
solute; boron; non-equilibrium segregation; grain boundary;
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摘要：
In consideration of the local equilibrium among vacancies,solute atoms and vacancy-soluteatom complexes and the influence of equilibrium grain boundary segregation,theoretical dy-namic formulas for non-equilibrium grain boundary segregation of solute have been derivedon the basis of the vacancy-dragging mechanism.Theoretical calculation by computer hasbeen carried out for the non-equilibrium segregation of boron to austenitic grain boundariesduring isothermal holding and continuous cooling after heating at high temperatures.The re-suits agree well with those obtained from experiments.
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页码：40 / 45
页数：6
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