ARB加工法により作製されたＡl-0.5%Si-0.5%Ge合金における結晶粒微細化と時効析出

Keiyu NAKAGAWA、Nobuhiro TSUJI、Daisuke TERADA and Teruto KANADANI

第18回アルミニウム国際会議（ICAA18 ）

The Japan Institute of Light Metals

富山市

Results showed that the hardness of the starting specimen of the ultrafine Al-0.5%Si-0.5%Ge alloy was about 2.3 times higher than that of the coarse-grained specimen. The hardness of ultrafine Al-0.5%Si-0.5%Ge alloy aged at 473K decreased monotonously with increasing aging time. On the other hand, ultrafine Al-0.5%Si-0.5%Ge alloy aged at 373K showed increase in hardness.