[G] Al・Al合金／新領域

14:15 〜 14:30

[30] Ageing-Induced Precipitation Evolution in Al–Zn–Mg Alloys with Cu Addition

○Innab Yumna¹, Han Chen², Daisuke Egusa¹, Eiji Abe¹ (1. The University of Tokyo , 2. Shanghai Jiao Tong University)

キーワード：

Aluminum alloy、Precipitation、Copper addition、TEM/STEM、Microstructure

The effects of Cu content and natural aging on the precipitation behavior of Al-6.0Zn-1.0Mg-xCu alloys were investigated by tensile testing and TEM/STEM. Natural aging altered the strengthening response. η-type triangular precipitates were observed in the 3 wt.% Cu alloy.