TY - JOUR A1 - Kiehl, Maximilian A1 - Scheid, Adriano A1 - Graf, Karin A1 - Ernst, Benedikt A1 - Tetzlaff, Ulrich T1 - Coaxial Laser Cladding of Cobalt-Base Alloy Stellite™ 6 on Grey Cast Iron Analysis of the Microstructural and Mechanical Properties Depending on the Laser Power JF - Journal of Materials Engineering and Performance N2 - A high-power diode laser was used to generate single- and multi-bead coatings of Stellite™ 6 by coaxial laser cladding over flat grey cast iron (EN-GJLP-200) as a preliminary study to develop a wear and corrosion resistant coating for brake disks on a cost-effective substrate. In this article, we have focused on a detailed quantitative analysis of the effect of different laser powers (1.5, 2.0, 2.5, 3.0, 3.5, and 4.0 kW) on the bead geometry, dilution, microstructure, and hardness. Coatings dilution or composition depends directly on the laser power as well as bead geometry. The typical microstructure of the coatings comprises a solid solution of α (hcp)- and β (fcc)-Co with a dendritic structure as a metal matrix and an interdendritic lamellar eutectic, which contains predominantly β-Co, chromium carbides Cr7C3 and Cr23C6 as well as blocky tungsten carbide W2C. Coating hardness depends on the chemical composition and microstructure that is modified by the deposition parameters. Low laser power results in high carbide fraction and most refined microstructures, accounting for harder coatings. UR - https://doi.org/10.1007/s11665-022-07358-3 KW - bead geometry KW - grey cast iron KW - hardness KW - laser power KW - microstructure KW - Stellite 6™ Y1 - 2022 UR - https://doi.org/10.1007/s11665-022-07358-3 UR - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:573-31249 SN - 1544-1024 SN - 1059-9495 VL - 32 IS - 8 SP - 3821 EP - 3838 PB - Springer CY - New York ER - TY - JOUR A1 - Ernst, Benedikt A1 - Keim, Simon A1 - Tetzlaff, Ulrich T1 - On the anisotropic indentation modulus and anisotropic creep behavior of β-Sn characterized by nanoindentation methods JF - Materials Science and Engineering: A UR - https://doi.org/10.1016/j.msea.2022.143392 Y1 - 2022 UR - https://doi.org/10.1016/j.msea.2022.143392 SN - 1873-4936 SN - 0921-5093 VL - 2022 IS - 848 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Kiehl, Maximilian A1 - Scheid, Adriano A1 - Graf, Karin A1 - Ernst, Benedikt A1 - Tetzlaff, Ulrich T1 - Coaxial laser cladding of cobalt-base alloy Stellite™ 6 on gray cast iron/investigations on friction, wear versus commercial brake pad, and corrosion characteristics JF - Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering UR - https://doi.org/10.1177/09544070221145512 Y1 - 2023 UR - https://doi.org/10.1177/09544070221145512 SN - 2041-2991 SN - 0954-4070 VL - 237 IS - 14 SP - 3285 EP - 3303 PB - Sage CY - London ER -