Fracture-Mechanisms in Two Austenitic and One Ferritic Steel.

摘要

The mechanisms of fracture of round tensile specimens of two austenitic stainless steels (types 304 and 316) and one ferritic steel (2 1/4 Cr-1 % Mo) have been studied. These new observations have been combined with published information to construct two types of fracture-mechanism diagram which show the regions of dominance of each mechanism, and summarise the fracture observations between absolute zero and melting point. These diagrams may help in distinguishing between creep-brittle and creep-ductile batches of steel, and in the rational extrapolation of creep-rupture data. (Author)