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Stress Corrosion—The Engineer̕ s View*

Published online by Cambridge University Press:  04 July 2016

P. H. Wall*
Affiliation:
Handley Page Ltd.

Extract

Of all those forms of corrosion with which the engineer must deal, such as atmospheric corrosion, galvanic and fretting, stress corrosion is perhaps the most difficult to understand, to predict and to prevent.

Unlike that other troublesome characteristic of metals, namely fatigue, which also defies exact analysis, it is caused by static tensile stress acting in a corrosive environment (in many cases, the atmosphere). This may be due to internal residual stress or externally applied assembly stress and under such circumstances the possibility of stress corrosion occurring is ever present and is not necessarily removed by the cessation of the working loads.

Most alloys are susceptible to some degree ranging from those which suffer in practice to those which only exhibit the phenomena under exaggerated laboratory conditions. Some examples are railway locomotive boilers, stainless steel construction, commercial spot-welded construction and, of course, aeroplane structures in light alloy.

Type
Research Article
Copyright
Copyright © Royal Aeronautical Society 1959

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Footnotes

*

A Lecture given to the Society on 13th January 1959.

References

1.Robertson, W. D(Editor). Stress Corrosion Cracking and Embrittlement. John Wiley and Sons Inc., Chapman and Hall. p. 1.Google Scholar
2.Robertson, W. D(Editor). Stress Corrosion Cracking and Embrittlement. Chapman and Hall. p. 2.Google Scholar
3.Robertson, W. D(Editor). Stress Corrosion Cracking and Embrittlement. Chapman and Hall. p. 73.Google Scholar
4.Sully, A. H. and Hardy, H. K. (1954). Journal of the Institute of Metals, 82, 264, 1954.Google Scholar
5. The susceptibility of certain high strength light alloys to cracking in the transverse grain directions when subjected to a static tensile stress. Technical Section, S.B.A.C. Interim Report, March 1955.Google Scholar
6.Dix, E. H. (1950). Transactions of the American Society for Metals, 1950.Google Scholar
7.Edeleanu, C. (1951-52). Journal of the Institute of Metals, Vol. LXXX, 1951-52.Google Scholar
8.Finney, J. M. and Johnstone, W. W. (1956). The effect of grain size on the flexural fatigue strength of L40 aluminium alloy. Commonwealth of Australia. Department of Supply, Research Development Branch. A.R.L. Structures and Materials Note 231, July 1956.Google Scholar
9.Meikle, G. (1949). Stress corrosion tests on recessed screws in DTD.683 aluminium alloy T.N. Met. 115, November 1949. Google Scholar
10.Meikle, G. and Lewis, D. (1955). The atmospheric stress corrosion of aluminium-zinc-magnesium type alloys. Report Met. 88, October 1955.Google Scholar
11. The susceptibility of certain high strength light alloys to “cracking in the transverse grain direction” when subjected to a static tensile stress. Technical Section, S.B.A.C. Second Interim Report, December 1956.Google Scholar
12.Meikle, G. and Braithwaite, C. (1958). The stress corrosion of aluminium alloy sheets. T.N. Met. 290, July 1958.Google Scholar
13.Polmear, I. J. (1955). A critical review of the mechanism of ageing in alloys based on the aluminium-zinc-magnesium system. Australian Aeronautical Research Committee. Report ACA-59, August 1955.Google Scholar
14.Willoughby, G. (1956). Report No. SX.4438. Research Division. High Duty Alloys Ltd., 5th July 1956.Google Scholar