Development of High Modulus Corrosion Resistant Aluminum Alloys

A program of basic research has been undertaken with the overall goal of establishing quantitative processing-microstructure-mechanical behavior relationships in fully-dense duplex Al-Zn-Mg-Al-Mn alloys produced by powder metallurgy. Initial attention has been directed to powder processing, consolid...

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Bibliographic Details
Main Author: Koczak,Michael J
Format: Report
Language:English
Subjects:
Aluminum alloy 7075
Aluminum alloy X7091
ALUMINUM ALLOYS
CORROSION RESISTANCE
DUCTILITY
EXTRUSION
FORGING
FRACTOGRAPHY
FRACTURE(MECHANICS)
HEAT TREATMENT
IMPACT TESTS
MAGNESIUM
MANGANESE
MATRIX MATERIALS
MECHANICAL PROPERTIES
Mechanics
MICROSTRUCTURE
MODULUS OF ELASTICITY
MORPHOLOGY
PLASTIC DEFORMATION
POWDER METALLURGY
Properties of Metals and Alloys
STRENGTH(MECHANICS)
STRESS STRAIN RELATIONS
STRUCTURAL PROPERTIES
TENSILE STRENGTH
THERMAL PROPERTIES
TOPOGRAPHY
TOUGHNESS
ZINC
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Summary:A program of basic research has been undertaken with the overall goal of establishing quantitative processing-microstructure-mechanical behavior relationships in fully-dense duplex Al-Zn-Mg-Al-Mn alloys produced by powder metallurgy. Initial attention has been directed to powder processing, consolidation, mechanical property and corrosion response. Microstructures have been characterized in the powder, hot compacted billets, forgings and extrusions. Mechanical properties of primary interest were modulus, strength, impact and ductility. The goal of this highly exploratory program was to develop a duplex, aluminum alloy in which an MnAl6 aluminide dispersant phase provided for modulus/strength contributions, while the Al-Zn-Mg matrix imparted ductility and toughness.