航空航天变形铝合金的进展(3)

Advancement in aerospace wrought aluminium alloys( 3)

本篇是全文的第三部分。主要介绍Al-Zn-Mg-Cu系变形铝合金的发展情况,并对7050、7A33、7175、7475、7055、7A55等几种铝合金的特性和在航空航天器上的应用进行了简要介绍。

This article is the third section of its whole,which mainly introduced the devel- opment of the A1-Zn-Mg-Cu series wrought aluminium alloys. It also briefed the property of several aluminium alloys such as 7050,7A33,7175,7475,7055,7A55 and their application in aerospace vehicles.