Stress-corrosion resistance of the EN AW-AlZn5Mg1,5CuZr alloy in different heat treatment states

Lesław Kyzioł

doi:10.2478/pomr-2013-0039

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Stress-corrosion resistance of the EN AW-AlZn5Mg1,5CuZr alloy in different heat treatment states

Polish Maritime Research

Volume 20 (2013): Issue 4 (December 2013)

By: Lesław Kyzioł

Open Access

|Dec 2013

Abstract

The effect of heat treatment of the plastically worked 7000 series Al-Zn-Mg aluminium alloy system on its stress-corrosion resistance is examined. For the same chemical constitution, the effect of heat treatment on mechanical and corrosion properties of Al-Zn-Mg alloys systems is remarkable. It was proved that a parameter having significant effect on corrosion properties of the alloy is the rate of alloy cooling after heat treatment. This conclusion is confirmed by observation of structural forms which fully reflect mechanical and corrosion properties of the alloy.

References

1. Gruhl W.: The stress corrosion behaviour of high strength AlZnMg alloys. Aluminum, 5, 1978.
Search in Google Scholar
2. Sinavskij V. S., Valkov V. D.: Korrozja i zaŝĉita aluminiovych splavov. Metallurgija, Moskva, 1986.
Search in Google Scholar
3. Strabawa J.: Structural analysis of stress-corrosion development in K63Cu alloy. Ph.D. thesis (in Polish), AGH, Cracow, 1974.
Search in Google Scholar
4. Charbonier J. C., Marandet B., Sanz G.: Methodes d`essais utilisees pour la determination de KISCC en milieu salin: application au cas de guelgues aciers a`tres haute resistance. Mateaux, 50, No 599-600, 1975.
Search in Google Scholar
5. Cudny K., Puchaczewski N.: Metal alloys for ship hulls (in Polish). Wydawnictwo Morskie, Gdańsk 1989.
Search in Google Scholar
6. Bugłacki H.: The effect of heat treatment and chemical constitution on mechanical properties and stress corrosion of the AlZn5Mg1 alloy in welded ship constructions. Ph. D. thesis (in Polish). Gdansk University of Technology. Gdańsk, 1981.
Search in Google Scholar
7. Cudny K et. al.: Summary of examination of weldability and corrosion resistance of the AlZn5Mg3 alloy. Scientific research report (in Polish). WSMW, Gdynia 1984.
Search in Google Scholar
8. Cudny K., Wojcik J.: Testing the tendency to hot crack of the AlZn5Mg1 alloy welded with AlMg5 and AlMg5Zn2 binders with different zirconium content (in Polish). Zeszyty Naukowe WSMW, Gdynia Nr 1/60, 1979.
Search in Google Scholar
9. Report on scientific research “Light alloys”, stage II, (in Polish). WSMW Gdynia, 1982.
Search in Google Scholar
10. Yoshimitsu M.: Influence of applied stress and test temperature on stress corrosion cracking of Al-Zn-Mg alloy. Journal Japan Institute Light Metals, No 12, 1976.
Search in Google Scholar
11. Brown B F.: A new stress-corrosion cracking test for high strength alloys. Material Research and Standards, No 3, 1966.
Search in Google Scholar
12. Kowarsch A., Bugłacki H.: Testing the effect of stress corrosion on strength of precipitation hardened Al-Zn-Mg alloys (in Polish). Ochrona przed korozją, Nr 1, 1979.
Search in Google Scholar
13. Kyzioł L., Czapczyk K.: Influence of heat treatment on stress -corrosion resistance of EN AW-AIZn5Mg1,5CuZr alloy, Solid State Phenomena, Mechatronic System and Materials Vol. 199, 2013, pp. 424-429. 10.4028/www.scientific.net/SSP.199.424
Search in Google Scholar