热轧工艺对7055铝合金厚板组织的影响

闫亮明; 李园园; 毛柏平

doi:10.15980/j.tzzz.2012.09.031

轻有色合金 | 浏览量 : 0 下载量: 380 CSCD: 1

导出
分享
收藏
专辑

热轧工艺对7055铝合金厚板组织的影响
Influence of Hot Rolling Process on Microstructures of 7055 Aluminum Alloy Thick Plate
2012年32卷第9期页码：853-855
纸质出版日期： 2012 ，
DOI： 10.15980/j.tzzz.2012.09.031

扫描看全文

[1]闫亮明,李园园,毛柏平.热轧工艺对7055铝合金厚板组织的影响[J].特种铸造及有色合金,2012,32(09):853-855.

Yan Liangming1, Li Yuanyuan1, Mao Baiping2. Influence of Hot Rolling Process on Microstructures of 7055 Aluminum Alloy Thick Plate[J]. Special Casting & Nonferrous Alloys, 2012,32(9):853-855.
[1]闫亮明,李园园,毛柏平.热轧工艺对7055铝合金厚板组织的影响[J].特种铸造及有色合金,2012,32(09):853-855. DOI： 10.15980/j.tzzz.2012.09.031.

Yan Liangming1, Li Yuanyuan1, Mao Baiping2. Influence of Hot Rolling Process on Microstructures of 7055 Aluminum Alloy Thick Plate[J]. Special Casting & Nonferrous Alloys, 2012,32(9):853-855. DOI： 10.15980/j.tzzz.2012.09.031.

摘要

通过多道次热轧、热处理试验和显微组织观察

研究了不同热轧工艺对7055铝合金热轧组织和热处理组织的影响规律

其中热轧工艺选取常规热轧工艺和大道次压下工艺。结果表明

大道次压下工艺可以使7055铝合金厚板芯部获得均匀变形

并充分破碎粗大第二相;经470℃×90min单级固溶处理

大道次压下工艺获得的厚板芯部的粗大第二相获得了比较充分的熔接;120℃×24h时效处理后

大道次压下工艺获得的厚板的再结晶体积分数较常规轧制工艺获得的厚板降低约15%。

Abstract

Effects of different hot rolling processes on microstructure of hot-rolling and heat-treatment 7055 aluminum alloy have been investigated by hot rolling

heat-treatment and optical microscope observation

in which the hot rolling processes included general process and the process of severe reduction for per pass.The results show that

after severe reduction for per pass

uniform deformed microstructure in the center part can be observed in 7055 aluminum alloy plate

and the coarse second phase is sufficiently broken up.The second phase is fully dissolved into the center part of the plate rolled by the process of large reduction for per pass after solid-solution at 470 ℃ for 90 min.Compared with those by general rolling process

the recrystallization grain volume fraction is decreased by 15% in the plate rolled by the process of large reduction for per pass after aged at 120 ℃ for 24 hours.