半径
材料科学
粒子(生态学)
凝聚态物理
原子半径
化学物理
结晶学
物理
化学
量子力学
海洋学
计算机安全
计算机科学
地质学
作者
Shingo Iwamura,Yoshio Miura
标识
DOI:10.1016/j.actamat.2003.09.042
摘要
The coarsening behavior of the Al3Sc particles in Al–0.2wt%Sc alloy at 673–763 K is studied on the basis of TEM observations with the numerical model. Emphasis is on the effects of coherent/semi-coherent transition of the particles. The radius for coherent/semi-coherent transition of the Al3Sc particles is determined from TEM micrographs as 15–40 nm. The average particle radius, rave, of the Al3Sc particles obeys the rave3 growth low both in the coherent stage (rave<15 nm) and semi-coherent stage (rave>40 nm). However, in the intermediate stage, where coherent and semi-coherent particles coexist (15
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