Parameter study of an Al–Cr–Mo–Sc–Zr alloy processed by laser powder bed fusion reaching high build rates
Market availability of aluminum alloys for laser powder bed fusion (L-PBF) is still highly limited in comparison to conventional manufacturing processes. The demand for high-strength but inexpensive alloys specifically designed for L-PBF is high. This demand has led to research on a variety of adapt...
Gespeichert in:
Veröffentlicht in: | Progress in additive manufacturing 2025, Vol.10 (1), p.349-360 |
---|---|
Hauptverfasser: | , , , , |
Format: | Artikel |
Sprache: | eng |
Schlagworte: | |
Online-Zugang: | Volltext |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
Zusammenfassung: | Market availability of aluminum alloys for laser powder bed fusion (L-PBF) is still highly limited in comparison to conventional manufacturing processes. The demand for high-strength but inexpensive alloys specifically designed for L-PBF is high. This demand has led to research on a variety of adapted conventional alloys which are still limited to utilize the full potential of L-PBF. Scalmalloy
®
(Al–Mg–Sc–Zr) satisfies the demand for high-strength L-PBF-alloys but needs a high energy input and has troubles with evaporation of Mg. Scancromal
®
(Al–Cr–Sc–Zr) is a novel alloying system for L-PBF and was first introduced in 2019 with the possibility of higher build rates and comparable strengths to Scalmalloy
®
. In this paper, a more economic low Sc-containing version of Scancromal
®
is presented. A parameter study was performed for
100
μ
m
layer thickness reaching high build rates of about
47
cm
3
h
-
1
. Hardness tests for different parameters were carried out and showed a stable process window with a hardness comparable to AlSi10Mg. Additionally, two-dimensional multilayer process simulations showed a potential for increasing the layer thickness to
150
μ
m
and therefore a significant increase in build rate of up to
70
cm
3
h
-
1
highlighting the high productivity potential of Al–Cr alloys for L-PBF. |
---|---|
ISSN: | 2363-9512 2363-9520 |
DOI: | 10.1007/s40964-024-00627-8 |