时效对快速凝固铝锂合金组织和性能的影响

Abstract

Abstract: ffect of aging on tensile properties and microstructure of rapid solidified Al 3.2Li 1.2Mg 0.3Cu 0.2Zr was studied.The results showed that tensile properties obtained by aging for long time at relatively low temperature were more desirable than those obtained by aging for short time at high aging temperature,The primary strengthening phase was δ'and Cu,Mg was for solution strenghening.Zirconium existed primarily in forus of metastable Al3Zr and duplex δ'/Al3Zr.Factors affecting the ductility of the RS Al Li alloys were discussed,and it was suggested that powder boundary precipitations were worthy of note for RS Al Li alloys.

Key words: Solidification, Aluminum-lithtum alloy, aging

CLC Number:

Jiao Chengge;Yu Guifu;Zhang Shaoqing;Yan Minggao. EFFECT OF AGING ON MICROSTRUCTURE AND PROPERTIES OF RAPID SOLIDIFIRD Ai Li ALLOY[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 1994, 15(12): 1450-1455.

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EFFECT OF AGING ON MICROSTRUCTURE AND PROPERTIES OF RAPID SOLIDIFIRD Ai Li ALLOY

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