Effect of temperature and heat treatment status on the ductile fracture toughness of 2219 aluminum alloy

摘要：

Through measurement of fracture toughness of 2219 aluminum alloy three-point bend specimen and observation of fracture surface and microstructure at different temperature, the influences of temperature and heat treatment status on the fracture toughness of 2219 aluminum alloy are discussed. The results show that temperature has an important influence on the fracture toughness of 2219 aluminum alloy. Compared with fracture toughness in room temperature, the fracture toughness is increased by 36％ at low temperature. Heat treatment status also affects fracture toughness greatly, and fracture toughness in the T62 state is better than that in the T87 state. In conclusion, the reason why enhancement of fracture toughness of 2219 aluminum alloy at low temperature appearance is concluded.

关键词： temperature heat treatment status fracture toughness 2219-aluminum-alloy

作者: Wenqing Qu Minyuan Song Junshan Yao Haiyun Zhao

作者单位: School of Mechanical Engineering & Automation, Beihang University, Beijing 100191 Shanghai Aerospace Equipments Manufacturer; Shanghai 200245; China

会议类型: 国际会议

会议名称: 11th IUMRS International Conference in Asia(第十一届国际材联亚洲材料大会 IUMRS-ICA 2010)

会议地点: 青岛

会议语种:英文

页码: 302-307

在线出版日期: 2010-09-25（万方平台首次上网日期，不代表论文的发表时间）