热处理对8090铝锂合金机械性能与显微组织的影响

ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 1989, Vol. 10 ›› Issue (11): 588-594.

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EFFECT OF HEAT TREATMENT ON THE MECHANICAL PROPERTIES AND MICROSTRUCTURES OF 8090 ALUMINUM-LITHIUM ALLOY

Lu Lianda, Cui Jianzhong, Ma Longxiang

Northeast University of Technology

Received:1988-11-07 Revised:1900-01-01 Online:1989-11-25 Published:1989-11-25

Abstract

Abstract:

The mechanical properties and microstructure characteristics of 8090 aluminum-lithium alloy have been investigated extensively by tensile testing, transmission and scanning electron microscopy in different heat treatment cinditions. The results showed that the optimum properties were obtained at 165℃/70-80h in which temper a better matching between δ' and S'precipatates was obtained, and the growth of δ' and δ' （PFZ） was limited.

Key words: Al-Li alloy, mchanical properties, microstructures

Lu Lianda;Cui Jianzhong;Ma Longxiang. EFFECT OF HEAT TREATMENT ON THE MECHANICAL PROPERTIES AND MICROSTRUCTURES OF 8090 ALUMINUM-LITHIUM ALLOY[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 1989, 10(11): 588-594.

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EFFECT OF HEAT TREATMENT ON THE MECHANICAL PROPERTIES AND MICROSTRUCTURES OF 8090 ALUMINUM-LITHIUM ALLOY

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