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材料研究学报  1988, Vol. 2 Issue (4): 18-23    
  研究论文 本期目录 | 过刊浏览 |
溶质在晶界的平衡与非平衡偏聚
褚幼义;贺信莱;柯俊
北京科技大学;北京科技大学;北京科技大学
EQUILIBRIUM AND NONEQUILIBRIUM SEGREGATION OF SOLUTE AT GRAIN BOUNDARIES
CHU Youyi;HE Xinlai;KE Jun(T.Ko)(Beijing University of Science and Technology)
引用本文:

褚幼义;贺信莱;柯俊. 溶质在晶界的平衡与非平衡偏聚[J]. 材料研究学报, 1988, 2(4): 18-23.
, , . EQUILIBRIUM AND NONEQUILIBRIUM SEGREGATION OF SOLUTE AT GRAIN BOUNDARIES[J]. Chin J Mater Res, 1988, 2(4): 18-23.

全文: PDF(943 KB)  
摘要: 在含硼约15ppm 的Fe-30wt-%Ni 合金中,硼在奥氏体晶界存在平衡与非平衡两类偏聚。等温偏聚动力学曲线上出现极大值,是晶界非平衡偏聚的重要特征。在较低温度下等温,非平衡偏聚促进了晶界硼相的析出和平衡偏聚的建立。在连续冷却的试样中,硼在晶界的偏聚是保温时形成的平衡偏聚和冷却时形成的非平衡偏聚的叠加。加热温度升高,其控制因素由前者转变为后者;冷却速度降低,后者增强。
Abstract:The experiment results show that there exist equilibrium and nonequilibriumboron segregation at austenite grain boundaries in Fe-30% Ni alloys withabout 15 ppm boron content.A maximum of boron grain boundary segregationappears on isothermal dynamic Curve,
收稿日期: 1988-08-25     
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