Effect of hot deformation conditions on grain structure and properties of 7085 aluminum alloy

被引：28
|
作者：
Chen, Song-yi [1 ]
Chen, Kang-hua [1 ]
Jia, Le [1 ]
Peng, Guo-sheng [1 ]
机构：
[1] Cent S Univ, State Key Lab Powder Met, Changsha 410083, Peoples R China
来源：
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA | 2013年 / 23卷 / 02期
基金：
中国国家自然科学基金;
关键词：
7085 aluminum alloy; Zener-Hollomon parameter; hot deformation; grain structure; dynamic recrystallization; static recrystallization; BOUNDARY MISORIENTATION ANGLE; CU-ZR ALLOY; MICROSTRUCTURAL EVOLUTION; AEROSPACE APPLICATIONS; TEMPERATURE; BEHAVIOR; COMPRESSION; TOUGHNESS; STRESS;
D O I：
10.1016/S1003-6326(13)62465-6
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The influences of deformation conditions on grain structure and properties of 7085 aluminum alloy were investigated by optical microscopy and transmission electron microscopy in combination with tensile and fracture toughness tests. The results show that the volume fraction of dynamic recrystallization increased with the decrease of Zener-Hollomon (Z) parameter, and the volume fraction of static recrystallization increased with the increasing of Z parameter. The strength and fracture toughness of the alloy after solution and aging treatment first increased and then decreased with the increase of Z parameter. The microstructure map was established on the basis of microstructure evolution during deformation and solution heat treatment. The optimization deformation conditions were acquired under Z parameters of 1.2x10(10)-9.1x10(12).
引用
收藏
页码：329 / 334
页数：6
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