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本文采用快速凝固技术制备了四种不同合金的Al—Li合金粉末,粉末体经冷压、真空除气、真空热压致密化,之后热挤压成捧材。研究了合金元素Cu、Mg、Zr对合金组织结构与性能的影响。讨论了影响合金组织与性能的原因以及改善合金塑性的可能途径。
In this paper, Al-Li alloy powders of four different alloys were prepared by rapid solidification. The powders were de-gassified by vacuum, de-gassing under vacuum and densified by vacuum hot pressing. The effects of alloying elements Cu, Mg and Zr on the microstructure and properties of the alloy were studied. The reasons that affect the microstructure and properties of the alloy and possible ways to improve the plasticity of the alloy are discussed.