关键词: 铝锂合金, 杂质, 稀土元素, 力学性能, 微观组织

Abstract:

The study status for the effects of impurities and rare earth elements in Al Li alloys has been surveyed. Particular attention has been paid to the mechanical properties in respect of different conditions and the mechanisms responsible for impurity induced embrittlement and rare earth microalloying. According to the presented investigations, some suggestions and viewpoints have been proposed to solve the noteworthy problem in the development and application of Al Li alloys.

Key words: Al Li alloy, impurities, rare earth addition, mechanical properties, microstructures