Evolutions of microstructures and textures of 7050 Al alloy plate during solution heat treatment

被引：0

作者：

Xiong, Chuang-Xian ^{[1
,2
]}

Deng, Yun-Lai ^{[1
,3
]}

Wan, Li ^{[1
,3
]}

机构：

[1] School of Materials Science and Engineering, Central South University, Changsha 410083, China

[2] Department of Civil Engineering, Hunan City University, Yiyang 413000, China

[3] Key Laboratory of Nonferrous Metal Materials Science and Engineering, Central South University, Changsha 410083, China

来源：

Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals | 2010年 / 20卷 / 03期

关键词：

7050 Al alloy - Continuous recrystallization - Grain orientation - Lamellar grains - Lamellar matrixes - Last stage - Rolling direction - Solution heat treatment;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Evolutions of microstructures and textures of 7050 Al alloy hot rolled plate during solution heat treatment were studied by OM, SEM, TEM, XRD and ODF techniques. The results show that when the samples are heated stage by stage up to 490°C, the lamellar grains are still parallel to the rolling direction. The textures of the solution treated samples are similar to the rolled ones. The grain orientations mainly concentrate to β-fiber and α-fiber, in company with a little {001} texture. The orientations densities of {124} and {112} textures increase with the recovery and continuous recrystallization of the deformed lamellar matrix. The sample, which is held at 475°C for 12 h in the last stage during the solution, contains Al2CuMg and Al7Cu2Fe particles. The sample, which is held at 490°C for 4 h in the last stage during the solution, still includes Al7Cu2Fe particles, but excludes Al2CuMg particles.

引用

页码：427 / 434