自然时效对<strong>Al-2.95Cu-1.55Li-0.57Mg-0.18Zr</strong>合金<strong>160℃</strong>人工时效的影响

自然时效对Al-2.95Cu-1.55Li-0.57Mg-0.18Zr合金160℃人工时效的影响

巩向鹏, 伍翠兰, 罗世芳, 沈若涵, 鄢俊

Effect of Natural Aging on Artificial Aging of an Al-2.95Cu-1.55Li-0.57Mg-0.18Zr Alloy at 160^oC

GONG Xiangpeng, WU Cuilan, LUO Shifang, SHEN Ruohan, YAN Jun

图4 自然时效7 d试样微观组织的TEM像和选区电子衍射(SAED)花样

Fig.4 TEM images of microstructures of the sample which is natural aged (NA) for 7 d
(a) atomic-resolution HAADF image of δ'-phase precipitates viewed along the [001]_Al orientation (Inset is the selected area electron diffraction (SAED) pattern)
(b) atomic-resolution HAADF image of GPI zones viewed along the [001]_Al orientation