预变形对铝锂合金强度和韧性的影响

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ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 1997, Vol. 18 ›› Issue (3): 379-381.

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INFLUENCE OF THE PREFORMATION ON STRENGTH AND TENACITY OF ALUMINUM LITHIUM ALLOYS

Wang Min, Chen Shisun

Faculty 402, Northwestern Polytechnical University, Xi'an,710072

Received:1996-04-04 Revised:1996-06-24 Online:1997-06-25 Published:1997-06-25

Abstract

Abstract:

The influence of the preformation before the ageing on strength and tenacity of Al Li alloys is studied, and the reason is analyzed for the increase in punch parts strength and tenacity as the result of the preformation before the ageing. The result showed that the optimum preformation of Al Li alloys 2090 before the ageing is 5%～10%,and for Al Li alloys 8090 of Mg/Cu=0.4 the optimum preformation is 6%～8%, and for Al Li alloys 8090 of Mg/Cu=0.8 2%～6%.

Key words: aluminum lithiun alloys, strength, tenacity, preformation

CLC Number:

V25013

Wang Min;Chen Shisun. INFLUENCE OF THE PREFORMATION ON STRENGTH AND TENACITY OF ALUMINUM LITHIUM ALLOYS[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 1997, 18(3): 379-381.

E-mail：hkxb@buaa.edu.cn

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INFLUENCE OF THE PREFORMATION ON STRENGTH AND TENACITY OF ALUMINUM LITHIUM ALLOYS

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