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Oerlikon AM, a 3D printing service with areas across the globe, has launched a brand new high-entropy alloy (AlxCrFe2Ni2) ultimate for structural parts like centrifugal pump impellers. The brand new materials was developed as a substitute for tremendous duplex stainless steels (DSS) and has comparable power and corrosion resistance properties.
Oerlikon AM’s newest materials providing is a high-entropy alloy powder characterised by a nanoscale duplex microstructure. The steel alloy, which surpasses the power of DSS and matches its corrosion resistance, additionally provides benefits by way of processability. Based on Oerlikon AM, as an example, components printed utilizing the high-entropy alloy are crack-free utilizing PBF even with out baseplate preheating. One other key advantage of the high-entropy alloy is that it’s extra proof against excessive temperatures, requiring solely a single-step warmth therapy to complete components.
DSS supplies in contrast are notoriously difficult by way of metallurgy and usually require advanced post-processing warmth therapies to scale back the danger of undesirable phases within the half’s microstructure. DSS components are additionally topic to embrittlement at excessive temperatures.
Using PBF with the alloy additionally allows a brand new diploma of design freedom unattainable utilizing typical manufacturing processes. This implies end-users can design extra advanced, optimized geometries for components like impellers. The printed materials additionally shows clean floor high quality with the printing course of.
Oerlikon AM is showcasing the DSS different at its sales space at Formnext 2021 this week (Corridor 12.1, sales space E101) within the type of a 3D printed impeller. The progressive materials was developed by the NADEA venture, a collaborative European analysis venture targeted on high-entropy alloys. Key to the powder’s environment friendly growth was Oerlikon Metco’s proprietary Scoperta Fast Alloy Growth Device, an analytical software program instrument that streamlines the engineering of latest steel alloys, from years to mere months.
Additionally throughout the context of Formnext 2021, Oerlikon AM revealed it had delivered its 1,000th 3D printed bicycle element to buyer Urwahn. The components in query had been a part of 150 units of seven new parts for a bicycle designed by Urwahn founder Sebastian Meinecke.
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