Accession Number : AD0744519

Title :   Segregation at Grain boundaries and Surfaces.

Descriptive Note : Final rept. 5 May 69-31 May 72,

Corporate Author : GENERAL ELECTRIC CORPORATE RESEARCH AND DEVELOPMENT SCHENECTADY N Y

Personal Author(s) : Anthony,Thomas R.

Report Date : MAY 1972

Pagination or Media Count : 14

Abstract : The segregation of impurities to grain boundaries generated by vacancy currents in metals was measured and related to the magnitude of vacancy currents occurring during annealing and quenching and to atomic parameters such as the vacancy jump frequency around impurity atoms in an alloy. Vacancy currents were found to cause both enhancement and depletion of alloy constituents at grain boundaries. (Author)

Descriptors :   (*GRAIN STRUCTURES(METALLURGY), IMPURITIES), GRAIN BOUNDARIES, ALUMINUM ALLOYS, SODIUM CHLORIDE, POTASSIUM COMPOUNDS, CHLORIDES

Subject Categories : Metallurgy and Metallography
      Solid State Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE