TRUER SPHERE - MCrAlY
NiCrAlY powder is one kind of spraying powders with Y-doped for adhesion. It has good high-temperature oxidation up to 1100 and corrosion resistance. It can form a protective alumina (Al2O3) scale at elevated temperatures, making it ideal for gas turbine components by thermal spray coatings (HVOF, plasma spray) or additive manufacturing (LPBF, DED).
Its chemical composition can be customized, including NiCrAlY, FeCrAlY, NiCoCrAlY and CoNiCrAlY (higher melting point with Co-based).
Our common production process includes Gas Atomizing process (GA) & Plasma Rotating Electrode Process (PREP) with high spherical, high purity, high packing density, low porosity and excellent flowing properties.
The particle size can be customized by customer’s needs, normally our PSD 15-45um or 15-53um for LPBF, 45-106um for DED and 5-45um for HVOF or plasma spray.
Chemical Composition
| Element | Specification (wt%) | |||
|---|---|---|---|---|
| NiCrAlY | NiCoCrAlY | CoNiCrAlY | FeCrAlY | |
| Ni | Bal. | Bal. | 30.0-34.0 | – |
| Y | 0.3-0.7 | 0.3-0.7 | 0.4-0.7 | 0.3-0.7 |
| Cr | 28.5-30.5 | 15.5-17.5 | 20.0-23.0 | 22.5-25.5 |
| Fe | – | – | – | Bal. |
| Al | 9.5-10.5 | 10.0-12.0 | 7.0-10.0 | 7.0-9.0 |
| Co | – | 20.5-22.5 | Bal. | – |
Powder Properties
| Size Cuts (um) | D10 (um) | D50 (um) | D90 (um) | Flowability (s/50g) | Apparent Density (g/cm³) |
|---|---|---|---|---|---|
| 53–150 | 48–58 | 95–110 | 145–160 | 20.0 max. | 4.0 min. |
| 53–150 | 48–58 | 95–110 | 145–160 | 20.0 max. | 4.0 min. |
| 45–105 | 54–60 | 70–78 | 95–115 | 20.0 max. | 4.0 min. |
| 15–45 | 15–20 | 26–32 | 42–51 | 20.0 max. | 4.0 min. |
Customized particle size distribution available upon request.
Detailed test data are reported in Certificate of Analysis for each order.
Packaging
TRUER SPHERE AM powders are available in1, 2, 5, 10 and 20kg, packages, or required, packed by plastic bottle filled with inert gas or vacuum.
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