Aluminium–lithium alloys (Al–Li alloys) are a set of alloys of aluminium and lithium, often also including copper and zirconium. Since lithium is the least dense elemental metal, these alloys are significantly less dense than aluminium. Commercial Al–Li alloys contain up to …

美国洛克希德 导弹 和空间公司(LMSC)制造的飞行器使用低密度、中等强度和高刚度的材料，因此大量采用Al-Li合金产品。从20世纪80年代中期开始，大量选用8090及普通加工方法生产各种锻件、厚板、薄板与挤压件。

铝-锂合金是近40多年来发展最快的一种轻量化结构材料，具有低密度、高的弹性模量、比强度、比刚度、疲劳强度、可焊性等优点，用其取代传统高强度铝合金可使结构质量减轻10%～20%，刚度提高15%～20%。 凡是含有合金化元素锂的铝合金都称铝-锂（Al-Li）合金，不管其含量多少。 截至2019年年底，全世界注册的Al-Li合金约60个，其中：在美国铝业协会（AA）注册的38个（2×××系的33个、8×××系的5个，常用的34个，非常用的4个）；在俄罗斯ГOST注册的约15 …

2012年3月31日 · A technical review of the physical, mechanical, and metallurgical variables that have influenced performance of Al-Li based alloys over the last 50 years is presented. First, the historic evolution of different alloys is discussed. Then, the microstructural features responsible for different mechanical properties are identified and discussed.

Aluminum–lithium (Al–Li) alloys represent a widely studied class of lightweight materials intended for aerospace structural applications.

Al-Li合金具有高弹性模量、低密度、高比强度、高比刚度以及良好的抗疲劳扩展等优势,广泛用于航空、航天领域 [1~3] 。析出强化作为Al-Li合金强度、韧性力学性能调控的重要手段,广泛用于新型Al-Li合金的开发、设计。

2013年9月1日 · Because lithium is the least dense elemental metal, materials scientists and engineers have been working for decades to develop a commercially viable aluminum-lithium (Al-Li) alloy that would be...

时效强化Al-Li合金具有低密度、高比强度、高弹性模量和较好的低温性能等特点，广泛应用于航空航天、军事工业等领域。 概述了Al-Li合金的发展历程及存在问题，简述了主要组织因素及相应解决办法，详细阐述了合金化、热变形及热处理工艺对新型Al-Li合金组织 ...

2016年11月12日 · Interest in aluminium–lithium (Al–Li) alloys arises from the important consideration that as the lightest metal, lithium additions to Al reduce its density (~3 % decrease per every wt%) and increase the elastic modulus (~6 % increase per every wt%).

Al-Li alloy is a candidate material for the cryogenic tankage of booster systems. These alloys are used in cryogenic applications for example, liquid oxygen and hydrogen fuel tanks for aerospace vehicles.