Superplastic aluminum products and alloys
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United States of America Patent
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Oct 17, 1989
Issued Date -
N/A
app pub date -
Aug 14, 1987
filing date -
Mar 20, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Superplastic forming of aluminum work stock is improved by including therein about 0.05% to about 10% or 15% scandium. In preferred practices, soluble elements such as magnesium are also included in the aluminum alloy. One or more of the elements from the group of scandium, yttrium, gadolinium, holminum, dysprosium, erbium, ytterbium, lutetium, and terbium, may be included in addition to or in lieu of scandium.
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