Manufacturing oxide-dispersion-strengthened steels using the advanced directed energy deposition process of high-speed laser cladding

Progress in Additive Manufacturing, vol. 8, pp. 159–167

Abstract

Abstract In this work, we demonstrate the feasibility of manufacturing an iron-based oxide-dispersion-strengthened (ODS) PM2000 composite material with the chemical composition of Fe20Cr4.5Al0.5Ti + 0.5Y 2 O 3 (in wt.%) via the advanced directed energy deposition (DED) process of high-speed laser cladding (HSLC). The characteristic high solidification rates of HSLC processes allow the successful dispersion of nano-scaled yttrium-based oxides in the ferritic stainless steel matrix. The effective suppression of nano-particle agglomeration during the melting stage, which is frequently observed in conventional DED processes of ODS materials, is reflected by smaller dispersoid sizes and corresponding higher hardness of manufactured specimen compared to DED-manufactured counterparts.

Authors 3

1. Markus Benjamin Wilms corresponding Aachen Fraunhofer Institute for Laser Technology ILT

   Fraunhofer Institute for Laser Technology · University of Wuppertal

   Affiliation as printed

   Fraunhofer Institute for Laser Technology ILT, Steinbachstr. 15, 52074, Aachen, Germany

   Materials Science and Additive Manufacturing, School of Mechanical Engineering and Safety Engineering, University of Wuppertal, Gaußstr. 20, 42119, Wuppertal, Germany

2. Norbert Pirch Aachen Fraunhofer Institute for Laser Technology ILT

   Fraunhofer Institute for Laser Technology

   Affiliation as printed

   Fraunhofer Institute for Laser Technology ILT, Steinbachstr. 15, 52074, Aachen, Germany

3. Bilal Gökce

   University of Wuppertal

   Affiliation as printed

   Materials Science and Additive Manufacturing, School of Mechanical Engineering and Safety Engineering, University of Wuppertal, Gaußstr. 20, 42119, Wuppertal, Germany