Accession Number : AD0643944

Title :   INFLUENCE OF HYDROGEN ON THE MECHANICAL PROPERTIES OF CHARPY V - NOTCH SPECIMENS OF LOW CARBON STEEL.

Descriptive Note : Technical rept.,

Corporate Author : STANFORD UNIV CALIF DEPT OF MATERIALS SCIENCE

Personal Author(s) : Fayet,Arnaud P.

Report Date : SEP 1966

Pagination or Media Count : 54

Abstract : Hydrogen embrittlement has been studied in steels containing 0.16% and 0.006% carbon which were subjected to an electrolytical charging. Charpy V - notch specimens of these materials were tested in three point slow bend loading. No embrittling effect of hydrogen appears below the ductility transition temperature of either alloy. Above this temperature, hydrogen embrittlement results from the formation of a high density of voids and the sharpening of the notch tip by coalescence with these voids. In contrast to the case of Iron -3% silicon, there is no evidence of hydrogen induced cleavage cracks. (Author)

Descriptors :   (*STEEL, *HYDROGEN EMBRITTLEMENT), FRACTURE(MECHANICS), CARBON ALLOYS, DUCTILE BRITTLE TRANSITION

Subject Categories : Metallurgy and Metallography

Distribution Statement : APPROVED FOR PUBLIC RELEASE