Accession Number : AD0684497
Title : GRAIN BOUNDARY SEGREGATION OF IMPURITIES IN METALS AND INTERGRANULAR BRITTLE FRACTURE.
Descriptive Note : Technical rept.,
Corporate Author : CARNEGIE-MELLON UNIV PITTSBURGH PA DEPT OF METALLURGY AND MATERIALS SCIENCE
Personal Author(s) : Low,John R. , Jr. ; Goodman,Stephen R. ; Smith,Craig L.
Report Date : 01 MAR 1969
Pagination or Media Count : 37
Abstract : The report discusses two investigations of temper embrittlement in low alloy quenched and tempered steel. Part I deals with additive effects of phosphorus and antimony as embrittling impurities in this type of grain-boundary embrittlement. Part II describes efforts to develop a method of determining the degree of segregation of alloys and impurities to grain-boundaries during temper embrittlement. The method under study involves neutron activation analysis of the etchant from etched intergranular fracture surfaces. (Author)
Descriptors : (*STEEL, HEAT TREATMENT), GRAIN BOUNDARIES, DUCTILE BRITTLE TRANSITION, IMPACT TESTS, PHOSPHORUS ALLOYS, ANTIMONY ALLOYS, ETCHING, NEUTRON ACTIVATION, CHEMICAL ANALYSIS
Subject Categories : Properties of Metals and Alloys
Distribution Statement : APPROVED FOR PUBLIC RELEASE