Optimized for Processing in Laser Powder Bed Fusion (PBF-LB) Systems
MetcoAdd 738, is a high gamma prime nickel based superalloy where composition has been modified to improve the printability of the alloy to minimize cracking known to be present in printing the cast composition. The alloy powder has been proven to demonstrate minimal to crack free print. Printability depends on machine type, optimized parameters and process variables.
Heat treated material properties at room temperature have been shown to be comparable to those of AMS 5410. Printed and heat treated samples of the modified composition have shown favorable hardness and 816°C (1500°F) tensile strength when compared with conventionally cast and heat treated material.
Density
ρ4 g/cm³ at 20 °C
typical apparent density, min
Particle size D10
D1019 μm
nominal values by laser diffraction
Particle size D50
D5031 μm
nominal values by laser diffraction
Particle size D90
D9049 μm
nominal values by laser diffraction
Particle size range
drange15 - 45 µm
ASTM C 1070 (Microtrac)
Application areas
Turbine engine hot section, Blades and heat shields
Availability
Stock
Chemical composition
Ni 17Cr 7(Al+Ti) 9Co 0.1C 2Mo 1.5Ta 0.06Zr
Distribution
Global
Handling recommendations
Blend contents prior to use to prevent segregation; Keep in the original container, or an approved alternative, tightly closed when not in use; Powder from previously opened containers should be stored in a humidity-controlled environment
Morphology
Spheroidal
Order number
1300957
Packaging size
4.5kg / 10 lb approx.
Processing history
Vacuum Induction Melted, Gas atomized (Argon)
Processing methods
Laser Powder Bed Fusion (PBF-LB)
This material data has been provided by Oerlikon Metco.