Pitting Corrosion of Natural Aged Al–Mg–Si Extrusion Profile
Abstract
:1. Introduction
2. Methodology
2.1. Materials and Sample Preparation
2.2. Surface Characterization and Pit Depth
3. Results and Discussions
4. Conclusions
Author Contributions
Funding
Conflicts of Interest
References
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Elements | Si | Fe | Cu | Mn | Mg | Cr | Zn | Ti | Al |
---|---|---|---|---|---|---|---|---|---|
Content | 0.5–0.9 | ≤0.35 | ≤0.30 | ≤0.30 | 0.40–0.7 | ≤0.30 | ≤0.20 | ≤0.10 | Bal. |
Sample | Pit No. | The Depth of Pit at Magnitudes of Enlargement | Averaged Depth (μm) | |||
---|---|---|---|---|---|---|
×1000 | ×500 | ×200 | ×100 | |||
Sample-H | A | 18 | 20 | 17 | 18.3 | |
B | 6 | 5 | 5 | 5.3 | ||
C | 3 | 3 | 5 | 3.7 | ||
D | 4 | 4 | 4 | 4.0 | ||
E | 17 | 12 | 12 | 13.7 | ||
F | 69 | 72 | 70 | 70.3 | ||
G | 39 | 41 | 40 | 40.0 | ||
H | 79 | 80 | 80 | 79.7 | ||
I | 9 | 11 | 10 | 10.0 | ||
J | 9 | 8 | 9 | 8.7 | ||
K | 10 | 8 | 12 | 10.0 | ||
L | 12 | 11 | 12 | 11.7 | ||
M | 6 | 6 | 6 | 6.0 | ||
Sample-Z | A | 4 | 5 | 5 | 4.7 | |
B | 8 | 9 | 9 | 8.7 | ||
C | 13 | 10 | 12 | 11.7 | ||
D | 9 | 8 | 7 | 8.0 | ||
E | 6 | 6 | 6 | 6.0 | ||
F | 4 | 4 | 5 | 4.3 | ||
G | 4 | 4 | 4 | 4.0 | ||
H | 31 | 30 | 30 | 30.3 | ||
I | 12 | 13 | 12 | 12.3 | ||
J | 12 | 11 | 11 | 11.3 | ||
K | 2 | 2 | 2 | 2.0 | ||
L | 6 | 5 | 7 | 6.0 |
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Guan, Q.; Sun, J.; Wang, W.Y.; Gao, J.; Zou, C.; Wang, J.; Tang, B.; Kou, H.; Wang, H.; Hou, J.; et al. Pitting Corrosion of Natural Aged Al–Mg–Si Extrusion Profile. Materials 2019, 12, 1081. https://doi.org/10.3390/ma12071081
Guan Q, Sun J, Wang WY, Gao J, Zou C, Wang J, Tang B, Kou H, Wang H, Hou J, et al. Pitting Corrosion of Natural Aged Al–Mg–Si Extrusion Profile. Materials. 2019; 12(7):1081. https://doi.org/10.3390/ma12071081
Chicago/Turabian StyleGuan, Quanmei, Jing Sun, William Yi Wang, Junfeng Gao, Chengxiong Zou, Jun Wang, Bin Tang, Hongchao Kou, Haisheng Wang, Jianying Hou, and et al. 2019. "Pitting Corrosion of Natural Aged Al–Mg–Si Extrusion Profile" Materials 12, no. 7: 1081. https://doi.org/10.3390/ma12071081