Laser deep alloying for the realization of finely graded alloys (U02)

• Subject Area: Metallurgical, Thermal and Thermomechanical Treatment of Materials
• Term: from 2016 to 2020
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 276397488

Finely graded alloy compositions with homogenous distribution are in-situ generated via laser powder bed fusion to produce homogenous parts with a highly flexible alloy variety for each part in a high throughput method using the same base powder material. The laser deep alloying method is transferred to a powder substrate as a three-stage process with a flexible deposition of alloying elements, their surface consolidation and subsequent deep alloying process for homogenization. The main mechanisms influencing the part homogeneity are to be predicted based on flow simulations and validated with experimental data.

• DFG Programme: Collaborative Research Centres
• Subproject of: SFB 1232: From colored states to evolutionary structural materials
• Major Instrumentation: LaserDepth LD-600-AL
• Instrumentation Group: 8720 Elektronische und pneumatische Längenmeßgeräte, Wegaufnehmer und Anzeigegeräte
• Applicant Institution: Universität Bremen
• Co-Applicant Institution: BIAS - Bremer Institut für Angewandte Strahltechnik GmbH
• Project Head: Professor Dr.-Ing. Frank Vollertsen