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Stress Corrosion—The Engineer̕ s View*

Published online by Cambridge University Press:  04 July 2016

P. H. Wall
P. H. Wall*
Affiliation:
Handley Page Ltd.
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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
Information
The Aeronautical Journal , Volume 63 , Issue 582 , June 1959 , pp. 354 - 365
Copyright
Copyright © Royal Aeronautical Society 1959

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Footnotes

*

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

References

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