EOS NickelAlloy IN718 for EOS M 300-4 | 80 µm HiPro

EOS M 300-4 - 80 µm - TRL 5

System Setup	EOS M 300-4
EOS Material set	IN718_080_HiProM304
Powder Product No.	9011-0020 / 9030-0022
Software Requirements	EOSPRINT 2.11 or newer EOSYSTEM 2.15 or newer
Recoater Blade	HSS (High Speed Steel)
Inert gas	Argon

Additional Information
Layer Thickness	80 µm
Volume Rate	up to 4 x 9.9 mm³/s
Min. Wall Thickness	0.3 - 0.4 mm

Chemical and Physical Properties of Parts

Microstructure of the Produced Parts

Defects	Thickness	Result	Number of Samples
Average Defect Percentage	80 µm	0.03 %	-

Density EN ISO 3369	Thickness	Result	Number of Samples
Average Density	80 µm	≥ 8.15 g/cm³	-

Mechanical Properties

Mechanical Properties Heat Treated

EN ISO 6892-1 Room Temperature \| 80 µm	Yield Strength [MPa]	Tensile Strength [MPa]	Elongation at Break A [%]	Reduction of Area Z [%]	Modulus of elasticity [GPa]	Number of Samples
Vertical	1190	1440	16	-	-	-
Horizontal	1240	1500	13	-	-	-

Heat treatment procedure conform to Aerospace Material Specification AMS 2774 and AMS 5662.
As manufactured microstructure for additively manufactured IN718 consists of gamma phase (γ). Heat treatment for IN718 is required to produce desired microstructure and part properties (gamma double prime precipitates, γ"). Heat treatment is also used to relieve stresses.

Step 1:
Solution Anneal: hold at 954 °C (1750 °F ) for 1 hour per 25mm (0.98 inch) of thickness, air (/argon) cool

Step 2:
Ageing treatment; hold at 718 °C (1325 °F ) 8 hours, furnace cool to 621 °C (1150 °F ) and hold at 621 °C (1150 °F ) for total precipitation time of 18 hours, air (/argon) cool