The conditions for initiation and the subsequent development of the severity of corrosion of metal alloys in the short term continue to be of research interest. However, for most physical infrastructure the critical issue often is the development and progression of corrosion under some level of oxygenated conditions, over several decades. In many cases this has significant implications for safety and for economic loss. Increasingly, asset management decision-making requires robust tools or models to predict the effect of corrosion, including loss, pit depth and crevice severity. The present capability in this area is reviewed and available models generally compared, including their degree of empiricism and their relationship to corrosion science fundamentals. It is argued that in addition to the role of material imperfections and corrosion products, the immediate physical environment adjacent to the metal alloy also can play a major role. These aspects are explored and some speculation made about required future research directions.

短期内引发金属合金腐蚀严重性的条件和随后发展的条件仍是研究热点。但是，对于大多数物理基础设施而言，关键的问题通常是几十年来在一定水平的含氧条件下腐蚀的发展和进展。在许多情况下，这对安全和经济损失具有重大影响。资产管理决策越来越需要强大的工具或模型来预测腐蚀的影响，包括损失，凹坑深度和缝隙严重程度。审查了该领域的现有能力，并比较了可用的模型，包括它们的经验程度以及它们与腐蚀科学基础的关系。据认为，除了材料缺陷和腐蚀产物的作用外，与金属合金相邻的直接物理环境也可能起主要作用。对这些方面进行了探索，并对所需的未来研究方向进行了一些推测。