J. Mater. Sci. Technol. ›› 2018, Vol. 34 ›› Issue (1): 173-184.DOI: 10.1016/j.jmst.2017.05.015
Special Issue: FSW-and-FSP-articles 2018
• Orginal Article • Previous Articles Next Articles
Weifeng Xua*(), Yuxuan Luoa, Wei Zhanga, Mingwang Fub
Received:
2017-02-20
Revised:
2017-04-17
Accepted:
2017-05-08
Online:
2018-01-20
Published:
2018-02-09
Contact:
Xu Weifeng
Weifeng Xu, Yuxuan Luo, Wei Zhang, Mingwang Fu. Comparative study on local and global mechanical properties of bobbin tool and conventional friction stir welded 7085-T7452 aluminum thick plate[J]. J. Mater. Sci. Technol., 2018, 34(1): 173-184.
Chemical compositions (wt%) | ||||||
---|---|---|---|---|---|---|
Al | Zn | Mg | Cu | Fe | Si | Zr |
Bal. | 7.0-8.0 | 1.2-1.8 | 1.3-2.0 | 0.08 | 0.06 | 0.08-0.15 |
Table 1 Chemical compositions of 7085-T7452 aluminum alloys.
Chemical compositions (wt%) | ||||||
---|---|---|---|---|---|---|
Al | Zn | Mg | Cu | Fe | Si | Zr |
Bal. | 7.0-8.0 | 1.2-1.8 | 1.3-2.0 | 0.08 | 0.06 | 0.08-0.15 |
Welding technology | Rotational speed (rpm) | Welding speed (mm/min) |
---|---|---|
SS-FSW | 300 | 60 |
600 | 60 | |
BB-FSW | 150 | 150 |
200 | 150 |
Table 2 Parameters for SS-FSW and BB-FSW.
Welding technology | Rotational speed (rpm) | Welding speed (mm/min) |
---|---|---|
SS-FSW | 300 | 60 |
600 | 60 | |
BB-FSW | 150 | 150 |
200 | 150 |
Fig. 11. DIC results for strain distribution of (a) the whole and different slices (b-top, c-middle, d-bottom) of a SS-FSW joint (300 rpm, 60 mm/min).
Fig. 13. DIC results for strain distribution of (a) the whole and different slices ((b)-top, (c)-middle, (d)-bottom) of a BB-FSW joint (150 rpm, 150 mm/min).
Fig. 14. Typical SEM images showing the fracture surfaces of (a and b) SS-FSW and (c and d) BB-FSW samples (a and c: secondary electron images, b and d: back-scattered electron images).
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