Accession Number : AD0430577


Title :   PRELIMINARY EVALUATION OF FOUR COLUMBIUM BASE ALLOYS FOR COATING CAPABILITIES AND MECHANICAL PROPERTIES AT ELEVATED TEMPERATURES. ADDENDUM I. STRUCTURAL BRAZING AND ALUMINIDE COATING,


Corporate Author : MARQUARDT CORP VAN NUYS CALIF


Personal Author(s) : Reeves,J C


Report Date : 12 Feb 1964


Pagination or Media Count : 11


Abstract : The evaluation of titanium-brazed niobium base alloys coated with Nb disilicide was completed. These tests indicated catastrophic embrittlement of the braze joint area. Preliminary testing of brazed joints protectively coated with aluminide and tested at 2600 F in air indicated retention of basic Nb alloys base metal properties without any adverse effect (decline of values) or embrittlement on the braze joint area. (Author)


Descriptors :   *PROTECTIVE TREATMENTS , BRAZING , NIOBIUM ALLOYS , SOLDERED JOINTS , OXIDATION , HIGH TEMPERATURE , SCIENTIFIC RESEARCH , REFRACTORY COATINGS , ALUMINUM COMPOUNDS , TIN COMPOUNDS , SILICIDES , BRITTLENESS , TUNGSTEN


Distribution Statement : APPROVED FOR PUBLIC RELEASE