[G] Aluminum and Its Alloys / Emerging Fields

2:15 PM - 2:30 PM JST(5:15 AM - 5:30 AM UTC)

[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)

Keywords:

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.