Effect of composition on the mechanical and stress-corrosion behaviour of Al-Zn-Mg alloys

Abstract

Mechanical properties of a range of alloys based upon the AI-4.5Zn-2.5Mg composition have been studied both in air and in a salt water environment. Correlation of microstructural information with alloy composition and with mechanical test data shows that zinc additions have the greater hardening influence, while stress-corrosion cracking is more sensitive to the magnesium content.

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References

SPEIDEL

M. O.

: ‘The Theory of Stress Corrosion Cracking in Alloys’, (ed. Scully

J. C.

), p. 289. 1971: Brussels

(NATO).

VARLEY

P. C.

, DAY

M. K. B.

, and SENDOREK

: J. Inst. Met., 1957 –58, 86, 337.

KENT

K. G.

: ibid., 1969, 97, 127.

JACOBS

: J. ASM Trans. Quart., 1965, 58, 579.

GRUHL

: Aluminium, 1962, 38, 775.

HOLL

H. A.

: Corrosion, 1967, 21, 173.

UNWIN

P. N. T.

and NICHOLSON

R. B.

: Acta Metall., 1969, 17, 1379.

De ARDO

A. J.

and TOWNSEND

R. D.

Metall. Trans., 1970, 1, 2573.

SEDRIKS

A. J.

, SLATTERY

P. W.

, and PUGH

E. N.

: Trans. ASM., 1969, 62, 238.

10.

DOIG

and EDINGTON

J. W.

: Br. Corros. J., 1974, 9, 220.

11.

SEDRIKS

A. J.

, GREEN

J. A. S.

, and NOVAK

D. L.

: Metall. Trans., 1970, 1, 1815.

12.

TAYLOR

I. T.

and EDGAR

R. L.

: ibid., 1971, 2, 833.

13.

POULOSE

P. K.

, MORRAL

J. E.

, and McEVILY

A. J.

: ibid., 1974, 5, 1393.

14.

DOIG

and EDINGTON

J. W.

: Corrosion, 1975, 31, 347.

15.

GEST

R. J.

and TROIANO

A. R.

: ibid., 1974, 30, 274.

16.

CHEREPANOV

G. P.

: ibid., 1973, 29, 305.

17.

McEVILY

A. J.

, CLARK

S. B.

, and BOND

A. P.

: Trans. ASM., 1967, 60, 661.

18.

KAPLAN

M. P.

, COWGILL

D. D.

, FRITZEN

J. S.

, KRUPP

W. E.

, KRYSTKOWIAK

, and WEBER

K. E.

: Corrosion, 1970, 26, 7.

19.

LORIMER

G. W.

and CLIFF

: `Developments in Electron Microscopy and Analysis’, (ed. Venables

J. A.

). 1976: New York

(Acad. Press).

20.

LOVE

, COX

M. G. C.

, and SCOTT

V. D.

: ‘Developments in Electron Microscopy and Analysis’, 1977 (ed. Misell

D. L.

), Inst. of Physics, Conf. Series no.36, 347.

21.

P.A. T'HACKERY: J. Inst. Met., 1968, 92, 228.

22.

NAEES

S. E.

: Scr. Metall., 1969, 3, 179.

23.

MONDOLFO

L. F.

: Metall. Rev., 1971, 16, 95.

24.

ZAKHAROV

A. M.

: Tsvetn. Met., 1961, 1, 124.

25.

KELLY

and FINE

M. E.

: Acta Metall., 1957, 5, 365.

26.

LYNCH

S. P.

: Met. Sci. J., 1973, 7, 93.

27.

DOIG

, EDINGTON

J. W.

, and HIBBERT

: Philos. Mag., 1973, 28, 971.