Further Study on the Mechanism of the Ductile-to-Brittle Fracture Transition in C-Mn Base and Weld Steel

摘要

In the present study, the crack opening displacement(COD) tests of specimens of C-Mn base and weld steel were carriedout in the ductile-brittle transition temperature region. The majorityof the specimens were fractured and others were unloaded prior tofracture after ductile fracture initiated and extended.