STRENGTHENING OF CHROMIUM-MAGNESIA COMPOSITES
Interim rept. no. 2, 1 Apr-31 May 1963
BENDIX CORP SOUTH BEND IN BENDIX PRODUCTS DIV
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The work accomplished during the second bi-monthly period of a program aimed at strengthening chromium-ceramic composites by alloying is described. The notch tensile properties of Chrome 30 were previously evaluated at several stress concentration levels. Extrusions were prepared for evaluation of several compositional and processing variables aimed at improving ductility prior to initiation of the alloying study. The impact and tensile properties exhibited by these extrusions have now been determined and are reported herein. Pertinent chemical analyses are also reported. The best improvements were obtained by reducing the magnesia content. The compound containing three weight percent magnesia exhibited 45 tensile elongation at room temperature. It was decided that these results warranted further study before starting the alloy phase of this program. Four billets representing other low magnesia percentages have been prepared for this purpose.
- Laminates and Composite Materials