Materials E-Guide
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Amdry DF-3-325 is a nickel-based, diffusion braze alloy designed for restoration and repair of nickel- or cobalt-based superalloy components. It has a finer particle size distribution compared to Amdry DF-3. When blended with a compatible filler powder. Joints provide very good ductility with excellent strength, oxidation resistance and corrosion resistance. Its low viscosity allows it to be used to repair tight, deep cracks. Braze Amdry DF-3 in a vacuum or dry hydrogen atmosphere.
Characteristics
| Material type | Brazing Powder |
|---|---|
| Product form | Powder |
| Material safety datasheet number | 50-801 |
| Achieved surface function primary |
Dimensional Restoration |
| Suitable for service environmen |
Combustion/Flue Gas |
| Recommanded brazing range (min) | 1191 |
| Recommanded brazing range (max) | 1218 |
| Brazing gap size range (min) | 0.05 |
| Brazing gap size range (max) | 0.1 |
| Liquidus temp. | 1121 |
| Solidus temp. | 1050 |
| Base composition | Nickel |
| Nominal chemistry | Ni 20Cr 20Co 3B 3Ta 0.05La |
| Customer specification approved |
Tulsa Airfoil Repair MS 2033 |
| Recommended process technology |
Brazing |
| Datasheet number | DSM-0343 |