SME EM900439

THE MICROSTRUCTURE AND MECHANICAL PROPERTIES OF PARTICULATE REINFORCED METAL MATRIX COMPOSITES PROCESSED BY SPRAY ATOMIZATION AND CO-DEPOSITION ARE CRITICALLY EXAMINED, WITH PARTICULAR EMPHASIS ON THE EFFECTS OF THE CERAMIC PHASE ON THE RESULTING MICROSTRUCTURE. RECENT RESULTS OBTAINED WITH BOTH ROOM AND ELEVATED TEMPERATURE ALUMINUM ALLOYS ARE HIGHLIGHTED, AND THE INTERACTION OF THE SIC PARTICULATES WITH THE SOLIDIFICATION FRONT DURING SPRAY DEPOSITION IS DISCUSSED, IN REFERENCE TO THE RESULTS ANTICIPATED FROM AVAILABLE KINETIC AND THERMODYNAMIC MODELS. IN ADDITION, THE DECREASE IN GRAIN SIZE WHICH IS NORMALLY OBSERVED WHEN A DISTRIBUTION OF CERAMIC PARTICULATES IS CO-INJECTED INTO A METALLIC SPRAY DURING SPRAY DEPOSITION IS RATIONALIZED BY CONSIDERING, AMONG OTHER FACTORS, THE TRANSFER OF THERMAL ENERGY.

Product Details

Published:

06/01/1990

Number of Pages:

15

File Size:

1 file , 1.5 MB