The composition of fine-scale precipitates in Al-Mg-Si alloys

被引：52

作者：

Edwards, GA

Stiller, K

Dunlop, GL

Couper, MJ

机构：

[1] CHALMERS UNIV TECHNOL,S-41296 GOTHENBURG,SWEDEN

[2] COMALCO RES CTR,THOMASTOWN,VIC 3074,AUSTRALIA

来源：

ALUMINIUM ALLOYS: THEIR PHYSICAL AND MECHANICAL PROPERTIES, PTS 1-3 | 1996年 / 217卷

关键词：

precipitation; Al-Mg-Si alloys; microanalysis;

D O I：

10.4028/www.scientific.net/MSF.217-222.713

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The compositions of intermediate precipitates in Al-Mg-Si alloys have been examined using atom probe field ion microscopy (APFIM), energy dispersive electron spectroscopy (EDS) and parallel electron energy loss spectroscopy (PEELS). It was found that the Mg:Si ratios in small, equiaxed precipitates, beta'' precipitates and beta' precipitates were close to 1.1 (atomic). The Mg:Si ratio in a B' precipitate was approximately 0.9. The implications of these results to the understanding of the mechanical properties of Al-Mg-Si alloys are discussed.

引用

页码：713 / 718

页数：6

共 7 条

[1] PERFORMANCE OF AN ENERGY COMPENSATOR WITH A LARGE ACCEPTANCE ANGLE [J].