CWDI-79-001 Correlations and Various Weld Cracking Tests

Abstract

The thermal contractions of a cooling weld may easily produce average strains of several percent in the weldment. Since hydrogen, which is likely to be present, can embrittle the steel, it is not surprising to find that welds in steel often crack. In order to try and control this phenomenon therefore requires a study of both the strains in a weld and the embrittling effect of hydrogen.