Effect of recrystallisation on Al3Zr dispersoid behaviour in thick plates of aluminium alloy AA7150

被引：0
|
作者：
Yong Zhang
Colleen Bettles
Paul A. Rometsch
机构：
[1] Monash University,ARC Centre of Excellence for Design in Light Metals, Department of Materials Engineering
来源：
Journal of Materials Science | 2014年 / 49卷
关键词：
Orientation Relationship; Thick Plate; Centre Layer; Al3Zr; Transmission Electron Microscopy Foil;
D O I：
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学科分类号：
摘要：
The ageing responses of surface/centre layer materials from a commercially produced AA7150 thick plate have been studied after both water quenching (WQ) and air cooling (AC). The results show that the higher degree of recrystallisation near the plate surface decreases its age hardening response in AC condition. Quench-induced phases have been found to precipitate preferentially on Al3Zr dispersoids in recrystallised grains. Microstructural observations show that Al3Zr dispersoids in recrystallised grains exhibit the same crystal structure and orientation as those in adjacent subgrains.
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页码：1709 / 1715
页数：6
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