可焊铝合金

船用可焊铝合金焊接接头的疲劳及裂纹扩展试验分析

Fatigue behaviour and crack growth tests of welded joint of aluminum alloy

随着可焊铝合金的发展和全球交通工具轻量化的趋势，铝合金T型接头在航天，船舶及汽车工业上有了越来越广泛的应用。

With the development of weldable aluminum alloy and global light-duty trend of transport facility , T-joint of aluminum alloy have been widely applied in the aerospace 、 shipbuilding and automobile industry .

可焊铝锂合金焊接研究现状

Welding research and development of weldable aluminum-lithium alloys

通过热处理改善合金化程度较低的中高强可焊Al-Zn-Mg系铝合金的抗应力腐蚀性能并保持合金强度是尚待研究的问题。

The problem of improving resistance to stress corrosion cracking ( SCC ) of moderate and high strength weldable Al-Zn-Mg series aluminum alloys with non-deteriorated strength by heat treatment was not still resolved .

本文通过高温压缩和高温拉伸试验，研究了中强可焊1420铝锂合金热变形时不同变形条件下的应力-应变关系、变形条件对合金流变应力的影响；

The relationship of true stress and true strain for the mid-strength weldable 1420 Aluminum-Lithium alloy has been investigated in this thesis by high temperature compression testing and high temperature tensile testing on different hot deformation conditions .

铝合金汽车车身的轻量化是节能环保型汽车的发展方向，开发铝合金新材料，研究铝合金材料的可焊性，分析铝合金焊接接头力学性能及其变化的规律是研究的热点问题。

Lightweight aluminum alloy body frame structure is direction of development on energy-saving environment-friendly vehicle , Studying of weld ability of aluminum alloy and analysis of mechanical properties of aluminum alloy welded joint and its changes is a hot topic .