Abstract
Some of the more recent experiments concerning the interactions between corrosion and creep in nickel-base superalloys have been reviewed and placed into three categories. The most systematic work, from the viewpoint of model development for the prediction of the service life, has concerned the exposure to a damaging environment before creep testing; but there is still insufficient work of this type. The ‘sharp interface’ composite model of corrosion-creep interactions has been developed to unify and extend the few attempt that have been made in the literature to provide predictive equations in this area. The virtue of such an approach is that it keeps the physics of the various processes well to the fore, but it is approximate and its success can only be gauged when well-defined systematic experiments have been performed in this important area. MST/446
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