铝合金中的溶质原子团簇及其强韧化

刘刚, 张鹏, 杨冲, 张金钰, 孙军

Aluminum Alloys: Solute Atom Clusters and Their Strengthening

LIU Gang, ZHANG Peng, YANG Chong, ZHANG Jinyu, SUN Jun

图1 250℃时效下Al-0.3%Sc合金中Sc原子团簇的HAADF-STEM像及其与Al3Sc沉淀相颗粒的对比，分别时效2、8和14 h的APT像以及相应的团簇尺寸统计结果[50]

Fig.1 Representative HAADF-STEM images showing the Sc clusters in an Al-0.3%Sc aged at 250oC in low (a) and high (b) magnification, which are compared with the Al3Sc precipitates created at higher temperature (c), representative APT images showing the Sc clusters in the alloy aged for 2, 8, and 14 h, respectively (d), together with the statistical results on the cluster size (Inset shows the results of large clusters with atoms > 33) (e)[50]