Burnt Microstructure and Properties of 7003 Aluminum Alloy

被引：0

作者：

Chen, X. M. ^{[1
]}

Song, R. G. ^{[1
]}

机构：

[1] Changzhou Univ, Sch Mat Sci & Engn, Changzhou 213164, Peoples R China

来源：

HIGH PERFORMANCE STRUCTURES AND MATERIALS ENGINEERING, PTS 1 AND 2 | 2011年 / 217-218卷

关键词：

7003 aluminum alloy; Burnt microstructure; Properties;

D O I：

10.4028/www.scientific.net/AMR.217-218.1454

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The microstructure and properties of 7003 aluminum alloy with and without burning have been investigated by means of electronic tensile machine, optical microscope (OM) and scanning electron microscopy (SEM). The results showed that the burning level of 7003 alloy increases while the ultimate tensile strength (UTS) and yield strength (YS) for the alloy decrease with increasing the solution temperature. When the solution temperature is higher than 763 K, the UTS and YS for the alloy decline fast with wide-range. The remelting structure, namely burnt structure, appeared on the grain boundaries in 7003 aluminum alloy and then weaken grain boundary, hence resulting in the transition of fracture surfaces from transgranular fracture to intergranular fracture.

引用

页码：1454 / 1457

页数：4

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