A Comprehensive Examination of High-Temperature Hydrogen Attack—A Review of over a Century of Investigations

In this review article, many aspects of high-temperature hydrogen attack steel are examined in a practical, topic-based format similar to that API RP 571. This article is result reviewing over 220 articles on the subject, published mostly between 1938 and 2020, while some them were already citing research going back late nineteenth early twentieth centuries. The paper not only examines historical evolution our understanding damage mechanism, but it also discusses current state knowledge fields still under development or improvement. Questions raised few important interpretations/classifications, namely inclusion decarburization as form HTHA, division incubation period detectable non-detectable stages by 941 recent distinction non-conventional non-classical HTHA literature, which may need re-evaluation. At end, interactions other (related) mechanisms discussed briefly failure case study presented with respect use curves for effect an upset condition.