Accession Number : ADA193939

Title :   Plasma Joining of Metal Matrix Composites.

Descriptive Note : Final rept. Sep 85-Oct 87,

Corporate Author : MSNW INC SAN MARCOS CA

Personal Author(s) : Reynolds, G H ; Yang, L

PDF Url : ADA193939

Report Date : 25 Feb 1988

Pagination or Media Count : 102

Abstract : This project was an analytical and experimental investigation of low pressure, transferred arc plasma joining of discontinuously reinforced metal matrix composites using composite powder filler metals. Modeling of the expected effects of plasma processing on the composite powder filler metals was performed. Microstructural and microchemical characterizations were performed on plasma processed composite powder filler metals, composite deposits produced on inert substrates, and composite weld metal emplaced in butt joints in 6061 - 30 wt.% SiCp based plates. Similar characterizations were performed on fusion line and heat affected zone regions of the composite weldments. Preliminary measurements of weldment mechanical properties (joint efficiency) were performed.

Descriptors :   *METAL MATRIX COMPOSITES, *PLASMA ARC WELDING, BUTT WELDING, COMPOSITE MATERIALS, DEPOSITS, EFFICIENCY, FILLERS, INERT MATERIALS, JOINING, JOINTS, LOW PRESSURE, MECHANICAL PROPERTIES, METALS, PLASMAS(PHYSICS), PLATES, POWDER METALS, PROCESSING, REGIONS, REINFORCING MATERIALS, SUBSTRATES, WELD METAL, WELDMENTS, ALUMINUM ALLOYS

Subject Categories : Fabrication Metallurgy

Distribution Statement : APPROVED FOR PUBLIC RELEASE