โ Scribed by E. Smith
No coin nor oath required. For personal study only.
Brittle fracture of steel structures has been a matter of considerable concern to both engineers and metallurgists for many years, it now being generally recognized that the cleavage mode of failure occupies a central position with respect to the problem. The paper reviews experimental evidence pertaining to the cleavage process in mild steel, particular attention being given to very recent work on the effect of second phase particles. A physical model of the process is thereby constructed, and in so doing, previous theories are critically examined and extended or modified where appropriate. * In this paper brittle has a general meaning and refers to a failure that occurs at a low applied stress level. For a notched component it implies that the failure occurs below the general yield stress, which is the applied stress at which a complete cross-section of the component is plastically deformed.
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