Accession Number : AD0014013


Title :   HYDROGEN EMBRITTLEMENT OF STEELS


Corporate Author : CASE INST OF TECH CLEVELAND OH METALS RESEARCH LAB


Personal Author(s) : Brown, Jack T ; Baldwin, W M


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/014013.pdf


Report Date : Jun 1953


Pagination or Media Count : 31


Abstract : The effect of H on the ductility (e) of SAE-1020 steel was studied at strain rates (e) of o.05 to 19,000 in./in./min at temperatures (T) from -320 to +150 F. The ductility surface of the embrittled steel revealed 2 domains: (1) one for which at temperatures below the minima in the ductility curves and (2) the other for which at temperatures above the minima. The H embrittlement mechanism accounts for only the first domain. Surfaces of the second type can be rationalized by an extension of the competitive-rate hypothesis. The nature of the temperature-sensitive process is considered to decrease with temperature and to cause embrittling. (See also AD2617)


Descriptors :   *HYDROGEN EMBRITTLEMENT , *DUCTILITY , *STEEL , TEMPERATURE SENSITIVE ELEMENTS , STRAIN RATE , SURFACES


Subject Categories : Properties of Metals and Alloys


Distribution Statement : APPROVED FOR PUBLIC RELEASE