CONSTITUTIONAL FACTORS AFFECTING THE TENSILE PROPERTIES OF WROUGHT ALUMINIUM-MAGNESIUM-SILICON-COPPER ALLOYS
S>The tensile properties of solution-treated and artificially aged alloys within the composition range 0.5 to 2.0% magnesium, 0.3 to 1.2% silicon, and 0 to 1.5% copper, have been investigated, and related to equilibrium reactions at the heat-treatment temperatures. An isotherm for the aluminum-- magnesium --silicon-- copper system at 520 deg C has been derived from published information, together with some original work. A close correlation was found between the mechanical properties and constitution, in particular the solid- solution composition when quenched. The effects of magnesium + silicon and of copper were found to be largely independent, the properties of an alloy with a given copper content being represented approximately by the properties of the ternary aluminum -- magnesium --silicon ailoy with the same magnesium + silicon content, plus an increase depending on the copper addition; alloys in which the strength was mainly attributable to copper were more ductile than those depending on magnesium and silicona (auth)
- Research Organization:
- Aluminium Labs., Ltd., Banbury, Eng.
- NSA Number:
- NSA-12-008459
- OSTI ID:
- 4332176
- Journal Information:
- J. Inst. Metals, Journal Name: J. Inst. Metals Vol. Vol: 86
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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