Unitemp AM-1DA (Modified) Alloy

Alloy name: Unitemp AM-1DA (Modified)
Diagram No.: 1025
Type of diagram: TTP
Chemical composition in weight %:
IN-100 Nb-modified (PM): 11.9% Cr, 17.7% Co, 3.3% Mo, 52% Al, 4.2% Ti, 1.4% Nb, 0.024% B, 0.06% Zr, 0.09% C, balance is Ni
IN-100 Nb-modified (CE): 12.1% Cr, 17.4% Co, 3.2% Mo, 5.3% Al, 4.4% Ti, 1.5% Nb, 0.028% B, 0.06% Zr, 0.08% C, balance is Ni
AF-2-1DA Nb-C-modified (CE): 12.0% Cr, 10.3% Co, 5.5% W, 2.95% Mo, 4.7% Al, 2.9% Ti, 1.4% Nb, 1.6% Ta, 0.020% B, 0.11% Zr, 0.09% C, balance is Ni
Alloy group: Nickel-based alloys
Note: : Time-temperature-precipitation diagram. Start of sigma phase. PM modified versions of IN-100 (Alloy 3) and AF- 2-IDA (Aloy 5) vs. conventional wrought. PM: powder metallurgy. CE: case and extruded. Treatment: Both PM and CE materials were given identical heat treatments, which consisted of a partial gamma prime solution treatment at temperatures 20 C (70 F) below the gamma prime solvus for 2 h, followed by cooling in air, a carbide-stabilizing heat treatment at 980 C (1795 F) for 8 h. followed by an air cool, and a gamma prime precipitation cycle of 760 C (1400 F) for 8 h. To observe the formation of sigma phase the heat-treated specimens were exposed to temperatures from 710 to 980 C (1300 to 1795 F) for various times in argon atmosphere.
Reference: Not shown in this demo version.

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