DataVXCorrosion Engineering, Science and TechnologyPaper
journal article·2021-10-03

Study on double peaks aging strengthening and stress corrosion cracking behaviour of 7075 aluminium alloy

X. Qi, X.M. Chen, R.G. Song

Corrosion Engineering, Science and Technology· Volume 56· Issue 7
Publisher page
Source abstract

Abstract

The aging strengthening effect, stress corrosion cracking (SCC) behaviour and microstructure of 7075 aluminium alloys under double peaks aging treatment have been investigated in this paper. The results show that the hardness and strength of alloys under the second aging peak are equal or slightly higher than those under the first peak. The microstructure analysis demonstrates that the aging strengthening effect of the first peak and second peak mainly depend on fine and intensive GP zones (2–6 nm in size with an inter-particle distance of 4–10 nm) and η’ phase (4–8 nm in size), respectively. Meanwhile, the SCC resistance of specimens under the second aging peak is better than the first peak aging treated ones. Lower Mg and higher Cu segregation on grainboundary induced by second peak aging treatment are considered to be the reason for better SCC behaviour according to high-resolution transmission electron microscopy and energy dispersive spectrometer results.
Source: openalex_inverted_index · Quality: baseline

Research context

Metals & alloys

OpenAlex topics: Aluminum Alloy Microstructure Properties · Microstructure and mechanical properties · Hydrogen embrittlement and corrosion behaviors in metals

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

School of Materials Science and Engineering, Changzhou University, Changzhou, People’s Republic of China

Jiangsu Key Laboratory of Materials Surface Science and Technology, Changzhou University, Changzhou, People’s Republic of China

Jiangsu Collaborative Innovation Center of Photovolatic Science and Engineering, Changzhou University, Changzhou, People’s Republic of China

Key Laboratory of Research on Hydraulic and Hydro-Power Equipment Surface Engineering Technology of Zhejiang Province, Hangzhou, People’s Republic of China

Funding

National Natural Science Foundation of China

References (32)

Show source-provided references
1. 10.1016/j.jmst.2016.07.00810.1016/j.jmst.2016.07.008 ↗
2. Qi WJ · Mater Perform · 2017 · 56 · 58
3. 10.1016/j.matdes.2007.07.00210.1016/j.matdes.2007.07.002 ↗
4. 10.1016/S0921-5093(97)00369-910.1016/S0921-5093(97)00369-9 ↗
5. 10.1007/s11665-012-0221-410.1007/s11665-012-0221-4 ↗
6. 10.1016/S0010-938X(03)00004-010.1016/S0010-938X(03)00004-0 ↗
7. 10.1007/s11661-007-9200-z10.1007/s11661-007-9200-z ↗
8. 10.1007/s10853-008-2773-010.1007/s10853-008-2773-0 ↗
9. 10.1016/j.corsci.2013.07.03210.1016/j.corsci.2013.07.032 ↗
10. 10.1016/j.actamat.2019.06.05610.1016/j.actamat.2019.06.056 ↗
11. Kaio NC · Mater Charact · 2016 · 85 · 26
12. 10.1016/j.msea.2004.02.05210.1016/j.msea.2004.02.052 ↗
13. 10.1007/s11665-009-9562-z10.1007/s11665-009-9562-z ↗
14. Song RG · J Mater Sci Tech · 1998 · 14 · 259
15. 10.1007/BF0267228410.1007/BF02672284 ↗
16. 10.4028/www.scientific.net/MSF.331-337.163510.4028/www.scientific.net/MSF.331-337.1635 ↗
17. 10.1016/j.actamat.2004.06.02510.1016/j.actamat.2004.06.025 ↗
18. 10.1016/j.corsci.2017.05.00710.1016/j.corsci.2017.05.007 ↗
19. 10.1016/j.jmst.2017.05.00810.1016/j.jmst.2017.05.008 ↗
20. GB 12445.1-90: High strength alloys-method of stress corrosion test for double cantilever beam (DCB) specimens.
21. 10.1186/s11671-018-2542-110.1186/s11671-018-2542-1 ↗
22. 10.1103/PhysRevB.56.1432210.1103/PhysRevB.56.14322 ↗
23. 10.1016/j.corsci.2010.08.02410.1016/j.corsci.2010.08.024 ↗
24. 10.1016/j.corsci.2015.05.01610.1016/j.corsci.2015.05.016 ↗
25. 10.1149/2.0301504jes10.1149/2.0301504jes ↗
26. 10.1016/j.jallcom.2003.11.17510.1016/j.jallcom.2003.11.175 ↗
27. 10.1179/1743278214Y.000000016210.1179/1743278214Y.0000000162 ↗
28. 10.5006/1.328769910.5006/1.3287699 ↗
29. 10.1016/S1003-6326(16)64220-610.1016/S1003-6326(16)64220-6 ↗
30. 10.1016/j.actamat.2004.06.02310.1016/j.actamat.2004.06.023 ↗
31. 10.1149/1.186998410.1149/1.1869984 ↗
32. 10.1016/j.corsci.2012.08.02410.1016/j.corsci.2012.08.024 ↗