Proceedings of the 2015 2nd International Workshop on Materials Engineering and Computer Sciences

Effect of ageing treatment on microstructure and stress corrosion cracking of an Al-4.2Zn-1.6Mg alloy

Authors
Kezhun He, Ling Meng, Xingwei Xie, Yongkang Le, Wenbiao Zhou
Corresponding Author
Kezhun He
Available Online October 2015.
DOI
10.2991/iwmecs-15.2015.123How to use a DOI?
Keywords
Al-Zn-Mg, ageing, stress corrosion cracking, precipitate, microstructure.
Abstract

The effect of T4, T6, T77 and T73 ageing treatments on microstructure and stress corrosion cracking of an Al-4.2Zn-1.6Mg alloy was investigated. TEM study revealed that there is no phase on the matrix or grain boundary in the T4 sample, and the precipitates on the grain boundaries of the T6 sample were small and continuously distributed, while the precipitates of the T77 and T73 samples discontinuously distributed on the grain boundary. Stress corrosion cracking resistance test in in the 50 3.5% NaCl solution and fractured surface observation revealed that the T4 sample have higher tendency of stress corrosion cracking compared with that of the T6 sample, while the T77 and T73 samples show good resistance of stress corrosion cracking. It is worth to note that the strength of the T77 sample is very close to that of the T6 sample.

Copyright
© 2015, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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Volume Title
Proceedings of the 2015 2nd International Workshop on Materials Engineering and Computer Sciences
Series
Advances in Computer Science Research
Publication Date
October 2015
ISBN
10.2991/iwmecs-15.2015.123
ISSN
2352-538X
DOI
10.2991/iwmecs-15.2015.123How to use a DOI?
Copyright
© 2015, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Cite this article

TY  - CONF
AU  - Kezhun He
AU  - Ling Meng
AU  - Xingwei Xie
AU  - Yongkang Le
AU  - Wenbiao Zhou
PY  - 2015/10
DA  - 2015/10
TI  - Effect of ageing treatment on microstructure and stress corrosion cracking of an Al-4.2Zn-1.6Mg alloy
BT  - Proceedings of the 2015 2nd International Workshop on Materials Engineering and Computer Sciences
PB  - Atlantis Press
SP  - 620
EP  - 623
SN  - 2352-538X
UR  - https://doi.org/10.2991/iwmecs-15.2015.123
DO  - 10.2991/iwmecs-15.2015.123
ID  - He2015/10
ER  -