Mechanical characterization by DOE analysis of AA6156-T4 friction stir welded joints in as-welded and post-weld aged condition

被引：8

作者：

Astarita, Antonello ^{[1
,2
]}

Prisco, Umberto ^{[3
]}

Squillace, Antonino ^{[1
]}

Velotti, Carla ^{[1
]}

Tronci, Aurelio ^{[4
]}

机构：

[1] Univ Naples Federico II, Dept Chem Mat & Prod Engn, I-80125 Naples, Italy

[2] Univ Manchester, Manchester M13 9PL, Lancs, England

[3] Univ Naples Federico II, I-80125 Naples, Italy

[4] Univ Cagliari, I-09124 Cagliari, Italy

来源：

MATERIALS TESTING | 2015年 / 57卷 / 03期

关键词：

Friction stir welding; AA6156; DOE; ANOVA; tensile properties; ALUMINUM-ALLOY;

D O I：

10.3139/120.110698

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Tensile properties of AA6156-T4 friction stir welded joints were studied in the as-welded and T62 postweld heat treated condition. To analyze the influence of rotating and welding speed on the 0.2 % proof stress and tensile strength of the two classes of joints, a complete full factorial design with three levels for each studied parameter was performed. Statistical analyses were carried out to establish empirical models of the tensile properties of the joints as a function of the studied welding parameters. The obtained models were validated by statistical tools such as Mallow's C-P, S, R-2 and R-2( adj). The developed regression models can be effectively used to predict the mechanical properties of the joints at 95 % confidence level.

引用

页码：192 / 199

页数：8

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