7A09铝合金锻裂原因分析  

Reason of Crack Occured during Forging 7A09 Aluminium Alloy

作　　者：竭艳丽[1] 马保伟[1] 

机构地区：[1]东北轻合金有限责任公司,黑龙江哈尔滨150060

出　　处：《轻合金加工技术》2001年第5期42-43,共2页Light Alloy Fabrication Technology

摘　　要：热裂纹是造成锻件劈裂的主要原因，利用宏观和显微组织对锻件壁裂进行研究，分析热裂纹产生的原因及煅裂过程。The hot cracking is the major factor that lead to crack of forgings. The cracked forgings are studied by macroscopic and microscopic strctures. The reason of hot cracking and the process of crack occured during forging are analysed.

关 键 词：铝合金 热裂纹 锻造 拉应力 

分 类 号：TG316[金属学及工艺—金属压力加工]