Metal treatment – Process of modifying or maintaining internal physical... – Heating or cooling of solid metal
Patent
1994-02-23
1995-04-11
Kastler, Scott
Metal treatment
Process of modifying or maintaining internal physical...
Heating or cooling of solid metal
148695, 148415, 148437, 148438, 148439, 148440, 420528, 420902, C22F 104
Patent
active
054054621
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 at a prescribed temperature for a prescribed period of time and then subjecting to a single or combined thermo-mechanical treatment. The superplastic aluminum-based alloy material of the present invention is suited for to superplastic working.
REFERENCES:
patent: 5053085 (1991-10-01), Masumoto et al.
patent: 5171374 (1992-12-01), Kim et al.
patent: 5332456 (1994-07-01), Masumoto et al.
Higashi Kenji
Inoue Akihisa
Kawanishi Makoto
Masumoto Tsuyoshi
Ohtera Katsumasa
Higashi Kenji
Inoue Akihisa
Kastler Scott
Koehler Robert R.
Masumoto Tsuyoshi
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