Rene 41 Alloy

Alloy name: Rene 41
Diagram No.: 867
Type of diagram: No data
Chemical composition in weight %: 20.10% Cr, 2.03% Fe, 0.089% C, 0.25% Si, 11.55% Co, 0.05% Mn, 10.17% Mo, 1.60% Al, 3.17% Ti, 0.0056% B, 0.016% S, balance is Ni
Alloy group: Nickel-based alloys
Note: Comparison of strain-age crack susceptibility for a Rene 41 specimen that was overaged before welding (circular data points) and a Ren 41 specimen that was solution annealed before welding (dashed C-curve). The overaging thermal cycle consisted of: 1080 C (1975 F), hold for 0.5 h, cool at 2 to 5 C/min (3 to 8 F/min) to 980 C (1800 F), hold for 4 h, cool at 2 to 5 C/min (3 to 8 F/min) to 870 C (1600 F) hold for 4 h, cool at 2 to 5 C/min (3 to 8 F/min) to 760 C (1400 F), hold for 16 h, air cool to room temperature. The result of this overaging treatment is to shift the nose of the C-curve from approximately 4 min in the solution-annealed condition to something in excess of 500 min when overaged.
Reference: Not shown in this demo version.

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