材料期刊网

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

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

金属学报(英文版)

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.

关键词: Al-Li alloy , null , null , null