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Material

CuAl8Ni6

Alloy

Cu / Al / Ni / Fe / Mo

Wire feedstock(s)

LNM CuAL8Ni6

Summary

CuAl8Ni6 is a Copper Aluminum Nickel alloy with excellent corrosion and wear resistance in seawater conditions. This alloy is employed in the manufacturing of ship propellers, cladding applications and shipbuilding industry.

Mechanical properties
WAAM (build direction)
Compared to casting
Yield Strength
292 MPa
245 MPa
Ultimate Strength
535 MPa
590 MPa
Elongation
30%
16%
Printing strategy
Straight lines
Heat treatment
Stress Relief
The above mentioned mechanical properties can vary according to design changes, process parameters optimization and strategy selection.
Use cases at RAMLAB

General remarks
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General explanation
Printing strategies
Straight lines strategy: several welding beads overlapped next to each other
Oscillation: continuous zig-zag bead that fills the entire layer

Heat treatement
Stress relief: due to the high residual stresses build up in the WAAM product, this heat treatment is necessary to minize residual stresses.