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Abstract

The chemical factors which lead to the production ofsurface films are summarized and the nature of the current transient observed in a ‘scratching-electrode’ test is described. This transient is then modelled in a simple fashion, to describe, in mathematical terms, the balance between applied strain rate and passivation rate in stress-corrosion tests. Features of the crack-tip deformation field are discussed and the application of the model to the corrosion fatigue of a precracked specimen is described as a general illustration of the mathematical approach, although attention is drawn to the difficulty of measuring some of the appropriate chemical parameters. Finally, effects ofstress state on stress-corrosion are treated.

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References

PARKINS

R. N.

: Metals Technology, this issue p. 122.

KNorr

J. F.

: Proc. 1st UK—USSR Seminar on Corrosion Fatigue, Lvov, May 1980.

POURBAIX

: ‘Atlas of electrochemical equilibria in aqueous solutions‘; 1966, Oxford, Pergamon Press.

MISAWA

: Corros. Sci., 1973, 13, 659.

eorraa

E. C.

: ‘Electrochemistry’; 1961, London, Cleaver-Hume Press.

SCULLY

S.C.

: ‘The fundamentals of corrosion‘; 1966, Oxford, Pergamon Press.

SCULLY

J. C.

: Met. Sci., 1978, 12, 290.

FORD

F. P.

: Met. Sci., 1978, 12, 326.

FORD

F. P.

, BURSTEIN

G. T.

, HOAR

AND T. P.

: J. Elearochern, Soc., 1980, 127, 1325.

10.

PARKINS

R. N.

: ‘Corrosion’, (ed. Shreir)

L. L.

, 2 ed., Vol. 1, Fig. 8.7; 1976, London, Newnes-Butterworth.

11.

BURSTEIN

G. T.

: personal communication.

12.

VERMILYEA

D. A.

and TEDMAN

c. S.

: J. Electrochem. Soc., 1970, 117, 437.

13.

ATEYA

B. G.

and PICKERING

H. W.

: J. Electrochem. Soc., 1975, 122, 1018.

14.

DOIG

and eiEwrrr

P. E. B.

: Proc. R. Soc., 1977, A357, 439.

15.

KNort

J. F.

: ‘Fundamentals of fracture mechanics‘; 1979, London, Butterworths.

16.

KNOT

D J. F.

and. Ewan’: ‘Worked examples in fracture mechanics’; 1979, London, Institution of Metallurgists.

17.

WILTSHIRE

and KNorr

J. F.

: Mt. J. Fract., 1980, 16, R19.

18.

KING

J. E.

and KNorr

J. F.

: J. Mech. Phys. Solids, 1980, 28, 191.

19.

TAYLOR

and KNorr

J. F.

: to be published in Metals Technology, June 1982.

20.

FUNGSHALL

N. W.

: PhD thesis, University of Cambridge, 1978.

21.

MISAWA

, RINGSHALL

N. W.

, and KNOTT

J. F.

: COCMS. Sci., 1976, 16, 805.

22.

TROIANO

A. R.

: Trans. ASM., 1960, 52, 54.

23.

KNOTT

J. F.

: Met. Sci., 1980, 14, 327.

24.

WILTSHIRE

: PhD thesis, University of Cambridge, 1981.

Chemical and mechanical aspects of crack initiation and growth in interactive environments

Abstract

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