Process Data Sheet
EOS NickelAlloy IN939 for EOS M 400-4 I 40 µm
EOS M 400-4 - 40 µm - TRL 5
Process Information Metal
This process parameter includes two variations of the exposure set: the first one provides better productivity and overhang buildability, while the second one is designed for optimized internal feature and cooling channel accuracy.
| System Setup | EOS M 400-4 |
|---|---|
| EOS Material set | IN939_040_CoreM404 |
| Software Requirements |
EOSPRINT 2.8 or newer EOSYSTEM 2.12 or newer |
| Recoater Blade | HSS (High Speed Steel) |
| Inert gas | Argon |
| Sieve | 63 µm |
| Additional Information | |
|---|---|
| Layer Thickness | 40 µm |
| Volume Rate | up to 4 x 3.6 mm³/s |
| Wall Thickness | Typical 0.3 - 0.4 mm mm |
Chemical and Physical Properties of Parts
Chemical composition of built parts is compliant to EOS NickelAlloy IN939 powder chemical composition.
Microstructure of the Produced Parts
| Defects | Thickness | Result | Number of Samples |
|---|---|---|---|
| Average Defect Percentage | - | 0.01 % | - |
| Density EN ISO 3369 | Thickness | Result | Number of Samples |
|---|---|---|---|
| Average Density | - | > 8.15 g/cm³ | - |
Mechanical Properties Heat Treated
| EN ISO 6892-1 Room Temperature | Yield Strength [MPa] | Tensile Strength [MPa] | Elongation at Break [%] | Reduction of Area Z [%] | Number of Samples |
|---|---|---|---|---|---|
| Vertical | 1080 | 1460 | 11 | - | - |
| Horizontal | 1160 | 1560 | 9.5 | - | - |
Mechanical Properties As Manufactured
| EN ISO 6892-1 Room Temperature | Yield Strength [MPa] | Tensile Strength [MPa] | Elongation at Break [%] | Reduction of Area Z [%] | Number of Samples |
|---|---|---|---|---|---|
| Vertical | 740 | 1090 | 28 | - | - |
| Horizontal | 880 | 1160 | 24 | - | - |
Mechanical Properties
Impact Toughness
Fatigue
Surface Roughness
Creep Performance
The stress-rupture performance of EOS NickelAlloy IN939 was tested on vertically oriented samples, in heat-treated condition. No HIP was applied. The data presents the Larson-Miller Parameter values achieved at stress levels of 100 MPa, 250 MPa and 450 MPa. Standard: ASTM E139