J. Mater. Sci. Technol. ›› 2018, Vol. 34 ›› Issue (1): 228-236.DOI: 10.1016/j.jmst.2017.11.039
Special Issue: Aluminum Alloys-2018; FSW-and-FSP-articles 2018
• Orginal Article • Previous Articles Next Articles
Yuqing Mao*(), Liming Ke, Yuhua Chen, Fencheng Liu, Li Xing
Received:
2017-04-10
Revised:
2017-07-10
Accepted:
2017-07-18
Online:
2018-01-20
Published:
2018-02-09
Contact:
Mao Yuqing
Yuqing Mao, Liming Ke, Yuhua Chen, Fencheng Liu, Li Xing. Inhomogeneity of microstructure and mechanical properties in the nugget of friction stir welded thick 7075 aluminum alloy joints[J]. J. Mater. Sci. Technol., 2018, 34(1): 228-236.
Zn | Mg | Cu | Si | Fe | Mn | Cr | Ti | Al |
---|---|---|---|---|---|---|---|---|
5.7-6.0 | 2.6-2.85 | 1.6-2.1 | 0.35 | 0.5 | 0.3 | 0.25 | 0.2 | Bal. |
Table 1 Chemical composition and mechanical properties of 7075-T6 aluminum alloy.
Zn | Mg | Cu | Si | Fe | Mn | Cr | Ti | Al |
---|---|---|---|---|---|---|---|---|
5.7-6.0 | 2.6-2.85 | 1.6-2.1 | 0.35 | 0.5 | 0.3 | 0.25 | 0.2 | Bal. |
Fig. 3. EBSD maps of microstructure at various depths in the WNZ: (a) 1 mm, (b) 3 mm, (c) 8 mm, (d) 13 mm, (e) 18 mm inside the nugget, respectively; and (f) the BM.
Fig. 6. Misorientation angle distribution at various depths in the WNZ: (a) 1 mm, (b) 3 mm, (c) 8 mm, (d) 13 mm, (e) 18 mm from top surface, respectively; and (f) the BM.
Fig. 7. TEM bright-field micrographs of plane view at various depths in the WNZ: (a) 1 mm, (b) 3 mm, (c) 8 mm, (d) 13 mm, (e) 18 mm from top surface, respectively, and (f) the BM; (g) SAED-1, (h) SAED-2, (i) SAED-3.
Fig. 11. SEM micrographs of tensile fracture surfaces for (a) top, (b) top-middle, (c) middle, (d) middle-root, (e) root, respectively; and (f) the BM.
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