Acta Metallurgica Sinica (English Letters) ›› 2016, Vol. 29 ›› Issue (12): 1161-1168.DOI: 10.1007/s40195-016-0510-2
Special Issue: Friction Stir Welding In AMSE 2015-2017; 2016-2017铝合金专辑
• Orginal Article • Previous Articles Next Articles
Zhong-Jie Yan1,Xue-Song Liu1(),Hong-Yuan Fang1
Received:
2016-09-14
Online:
2016-11-22
Published:
2016-11-22
Zhong-Jie Yan1,Xue-Song Liu1,Hong-Yuan Fang1. Fatigue Behavior of Dissimilar Al-Mg-Si/Al-Zn-Mg Aluminum Alloys Friction Stir Welding Joints[J]. Acta Metallurgica Sinica (English Letters), 2016, 29(12): 1161-1168.
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BM | Si | Fe | Cu | Mn | Mg | Zn | Ti | Cr | Al |
---|---|---|---|---|---|---|---|---|---|
Al-Mg-Si | 0.4-0.9 | ≤0.35 | ≤0.35 | ≤0.50 | 0.4-0.8 | ≤0.25 | ≤0.10 | ≤0.30 | Bal. |
Al-Zn-Mg | ≤0.30 | ≤0.30 | ≤0.20 | 0.2-0.7 | 1.0-2.0 | 4.0-5.0 | ≤0.20 | ≤0.30 | Bal. |
Table 1 Chemical compositions of the BM (wt%)
BM | Si | Fe | Cu | Mn | Mg | Zn | Ti | Cr | Al |
---|---|---|---|---|---|---|---|---|---|
Al-Mg-Si | 0.4-0.9 | ≤0.35 | ≤0.35 | ≤0.50 | 0.4-0.8 | ≤0.25 | ≤0.10 | ≤0.30 | Bal. |
Al-Zn-Mg | ≤0.30 | ≤0.30 | ≤0.20 | 0.2-0.7 | 1.0-2.0 | 4.0-5.0 | ≤0.20 | ≤0.30 | Bal. |
BM | Tensile strength (MPa) | Yield strength (MPa) | Elongation (%) |
---|---|---|---|
Al-Mg-Si | 284 | 241 | 25 |
Al-Zn-Mg | 368 | 256 | 19.5 |
Table 2 Mechanical properties of the BM
BM | Tensile strength (MPa) | Yield strength (MPa) | Elongation (%) |
---|---|---|---|
Al-Mg-Si | 284 | 241 | 25 |
Al-Zn-Mg | 368 | 256 | 19.5 |
Fig. 4 Crack source: surface indentation a, its magnified view b, secondary phase particle c, its magnified view d, e, f EDS analyses of the secondary phase particles A and B in d
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