Acta Metallurgica Sinica (English Letters) ›› 2015, Vol. 28 ›› Issue (5): 608-613.DOI: 10.1007/s40195-015-0238-4
• Orginal Article • Previous Articles Next Articles
Zuo-Yan Ye1, Dao-Xin Liu1(), Meng Yuan1, Xiao-Ming Zhang2, Zhi Yang2, Ming-Xia Lei2
Received:
2014-10-11
Revised:
2014-12-04
Online:
2015-02-14
Published:
2015-07-23
Zuo-Yan Ye, Dao-Xin Liu, Meng Yuan, Xiao-Ming Zhang, Zhi Yang, Ming-Xia Lei. Effects of Prior Corrosion with and Without Stress on the Mechanical Properties of 7475-T761 Aluminum Alloy[J]. Acta Metallurgica Sinica (English Letters), 2015, 28(5): 608-613.
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Fig. 2 Schematic diagram of stress ring device (1 themocouple, 2 Luggin capillary, 3 platinum plate, 4 heating element, 5 sample, 6 plexiglass container, 7 strainfoil)
Fig. 7 a Fracture surface of a prior corroded 7-day sample without stress, b magnified image of the quasicleavage region, denoted by A in a, c magnified image of the ductile region, denoted by B in a
Fig. 8 Fracture surface of a cathodic polarized sample (-1.5 V vs. SCE, 7 days) without stress: a inner and edge, b quasicleavage region at the edge of fracture surface
Sample | E corr (V) | i corr (mA/cm2) |
---|---|---|
Unloaded | -0.730 | 0.1445 |
75% σs loaded | -0.777 | 1.062 |
Table 1 Fitting data of polarization curves
Sample | E corr (V) | i corr (mA/cm2) |
---|---|---|
Unloaded | -0.730 | 0.1445 |
75% σs loaded | -0.777 | 1.062 |
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