| (19) |
 |
|
(11) |
EP 0 077 611 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
25.05.1983 Bulletin 1983/21 |
| (43) |
Date of publication A2: |
|
27.04.1983 Bulletin 1983/17 |
| (22) |
Date of filing: 28.09.1982 |
|
|
| (84) |
Designated Contracting States: |
|
DE FR GB |
| (30) |
Priority: |
29.09.1981 JP 15406481
|
| (71) |
Applicants: |
|
- Unitika Limited
()
- Masumoto, Tsuyoshi
()
|
|
| (72) |
Inventors: |
|
- Masumoto, Tsuyoshi
()
- Hamashima, Tatsuo
()
- Hagiwara, Michiaki
()
|
|
| |
|
| (54) |
Mn based alloy of nonequilibrium austenite phase |
(57) A Mn-based alloy is disclosed. The alloy is comprised of 4 to 30 atomic % of at least
one element selected from the group consisting of AI, Ni, and Cr; 1 to 15 atomic %
of C, 30 atomic % or less of at least one element selected from the group consisting
of Co, Mo, W, Ta, Nb, V, Ti, and Zr; and the balance of alloy making up 100 atomic
% being comprised substantially of Mn. The alloy has a nonequilibrium austenite phase.
The alloy disclosed has high ductility and workability. The alloy is capable of being
cold worked and has excellent tensile strength. The Mn-based alloy can be pioduced
at substantially the same cost as any Fe-based alloy. The disclosed alloy is a nonmagnetic
alloy which has been found to be very useful for nonmagnetic electromagnetic parts
and composite materials.