金属学报  2004, Vol. 40 Issue (10): 1009-1017

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含有两尺寸组粒子分布的多相材料再结晶的研究

宋晓艳 R. Markus 张久兴

北京工业大学材料科学与工程学院新型功能材料教育部重点实验室; 北京 100022

Recrystallization in Multi Phase Materials Containing Particles with A Two—Class Size Distribution

SONG Xiaoyan; R. Markus; ZHANG Jiuxing

College of Materials Science and Engineering; Beijing University of

宋晓艳; R.Markus; 张久兴 . 含有两尺寸组粒子分布的多相材料再结晶的研究[J]. 金属学报, 2004, 40(10): 1009-1017 .
, , . Recrystallization in Multi Phase Materials Containing Particles with A Two—Class Size Distribution[J]. Acta Metall Sin, 2004, 40(10): 1009-1017 .

摘要 参考文献 相关文章 Metrics 全文: PDF(14388 KB)   摘要: 采用仿真和实验相结合的方法，系统研究了含有两尺寸组粒子分布的多相材料的再结晶过程。建立了可描述大粒子激发形核和小粒子钉扎作用的Monte-Carlo仿真模型。利用仿真定量研究了两种粒子各种参数对形核和再结晶晶粒长大过程的影响，表明粒子激发形核效率依赖于大粒子影响区的储存能和局部小粒子的分布状态；基体平均储存能和大粒子高应变区储存能作为驱动力和小粒子钉扎阻力的竞争，决定整体材料发生完全再结晶、部分再结晶或再结晶被完全抑制。将Al－(0.3—1.1)%Zr(质量分数)系列合金的实验结果与相同形变和粒子参数条件下的仿真结果进行了比较，再结晶组织形貌和再结晶动力学的仿真计算和实验观测符合良好。 Abstract：Recrystallization in multi-phase materials containing particles with a two-class size distribution was studied with modeling and experiments. A 3D Monte-Carlo model combined with deterministic criteria was developed to describe nucleation stimulated by coarse particles and pinning effect of fine particles. The influences of various particle parameters on nucleation and growth of recrystallizing grains were quantitatively studied by simulations. The results show that the efficiency of particle stimulated nucleation depends on the stored energy in the particle-affected region and the local distribution of fine particles. 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