Fatigue crack propagation in friction stir welded joints of particulate metal-matrix composite

被引：0
|
作者：
Pirondi, A. [1 ]
Collini, L. [1 ]
Fersini, D. [1 ]
机构：
[1] Univ Parma, Dept Ind Engn, Viale GP Usberti 181-A, I-43100 Parma, Italy
来源：
ADVANCES IN FRACTURE AND DAMAGE MECHANICS VI | 2007年 / 348-349卷
关键词：
fatigue crack propagation; friction stir welding; particulate metal-matrix composites;
D O I：
10.4028/www.scientific.net/KEM.348-349.261
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
In this work the fatigue crack growth properties of friction stir welded butt joints are evaluated. Fatigue Crack Growth (FCG) tests have been carried out on two particle-reinforced aluminium alloys (AA6061/Al2O3/20p and AA7005/Al2O3/10p). FCG properties have been evaluated at the centre and at the side of the weld, respectively. The results are compared with FCG properties of base materials. The role of alumina in particles inside the matrix is evident in the threshold region: this can be explained in terms of Roughness Induced Crack Closure.
引用
收藏
页码：261 / +
页数：2
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