FRACTURE BEHAVIOUR AND FRACTURE TOUGHNESS OF Al-2.5Li-1.3Cu-0.9Mg-0.13Zr ALLOY

FRACTURE BEHAVIOUR AND FRACTURE TOUGHNESS OF Al-2.5Li-1.3Cu-0.9Mg-0.13Zr ALLOY

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摘要 The fracture mechanism for Al-2.5Li-1.3Cu-0.9Mg-0.13Zr alloy is quite different from undergone various regimes of heat treatment.With the decrease of solution temperature and the increase of aging temperature,the intergranular delamination and necking fracture on the fracture surface increase and the shearing facture decreases.Thus,the toughness of the alloy may be much improved. The fracture mechanism for Al-2.5Li-1.3Cu-0.9Mg-0.13Zr alloy is quite different from undergone various regimes of heat treatment.With the decrease of solution temperature and the increase of aging temperature,the intergranular delamination and necking fracture on the fracture surface increase and the shearing facture decreases.Thus,the toughness of the alloy may be much improved.

作者 WU Yilei QIANG Jun WANG Shuncai LI Yongwei GUO Bichao LIU Bocao Institute of Aeronautical Materials,Beijing Engineer,Institute of Aeronautical Materials,Beijing 100095,China

出处《Acta Metallurgica Sinica(English Letters)》 SCIE EI CAS CSCD 1993年第1期26-29,共4页 金属学报（英文版）

关键词 Al-Li alloy FRACTURE STRUCTURE heat treatment Al-Li alloy fracture structure heat treatment

分类号 TG-55 [金属学及工艺]

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Acta Metallurgica Sinica(English Letters)

1993年第1期

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FRACTURE BEHAVIOUR AND FRACTURE TOUGHNESS OF Al-2.5Li-1.3Cu-0.9Mg-0.13Zr ALLOY

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