Micromechanisms of fatigue crack growth and fracture toughness in metal-matrix composites. Technical report, 29 April 1986-31 July 1987
Technical Report
·
OSTI ID:5797230
Fatigue crack growth and fracture toughness of seven combinations of aluminum-matrix alloys reinforced with particulate silicon carbide were measured. The matrix alloys used were of both the work-hardening and heat-treatable varieties. Two of the alloys were made by mechanical alloying - powder-metallurgy fabrication methods and the remainder were made by ingot metallurgy. Composites were tested in both as-received (extruded) and packaged conditions. Fractography was done for all the composites, as were cross sections to examine surface roughness.
- Research Organization:
- Southwest Research Inst., San Antonio, TX (USA)
- OSTI ID:
- 5797230
- Report Number(s):
- AD-A-185200/3/XAB
- Country of Publication:
- United States
- Language:
- English
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