Metal treatment – Process of modifying or maintaining internal physical... – Heating or cooling of solid metal
Patent
1992-09-25
1994-07-26
Dean, Richard O.
Metal treatment
Process of modifying or maintaining internal physical...
Heating or cooling of solid metal
148695, 148415, 148437, 148438, 148439, 148440, 420528, 420902, C22F 100
Patent
active
053324560
ABSTRACT:
A superplastic aluminum-based alloy material consisting of a matrix formed of aluminum or a supersaturated aluminum solid solution, whose average crystal grain size is 0.005 to 1 .mu.m, and particles made of a stable or metastable phase of various intermetallic compounds formed of the main alloying element (i.e., the matrix element) and the other alloying elements and/or of various intermetallic compounds formed of the other alloying elements and distributed evenly in the matrix, the particles having a mean particle size of 0.001 to 0.1 .mu.m. The superplastic aluminum-based alloy material is produced from a rapidly solidified material consisting of an amorphous phase, a microcrystalline phase or a mixed phase thereof by optionally heat treating the material at a prescribed temperature for a prescribed period of time and then subjecting it to a single or combined thermomechanical treatment. The superplastic aluminum-based alloy material of the present invention is suited for superplastic working.
REFERENCES:
patent: 5053085 (1991-10-01), Masumoto et al.
patent: 5171374 (1992-12-01), Kim et al.
Higashi Kenji
Inoue Akihisa
Kawanishi Makoto
Masumoto Tsuyoshi
Ohtera Katsumasa
Dean Richard O.
Higashi Kenji
Inoue Akihisa
Koehler Robert R.
Masumoto Tsuyoshi
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