Masina, Bathusile NSkhosane, Besabakhe STlotleng, Monnamme2020-10-052020-10-052020Masina, B.N., Skhosane, B.S. and Tlotleng, M. 2020. Effect of in-situ heat treatment and process parameters on the laser-deposited IN718 microstructure and mechanical properties. MRS Advances, v5(23-24), pp 1245-1257.2059-8521DOI: https://doi.org/10.1557/adv.2020.213https://www.cambridge.org/core/journals/mrs-advances/article/effect-of-insitu-heat-treatment-and-process-parameters-on-the-laserdeposited-in718-microstructure-and-mechanical-properties/C36DEC371182C4088AAFF986F3F74D9Bhttp://hdl.handle.net/10204/11602Copyright: 2020 Cambridge University Press. This is the abstract version of the work. For access to the fulltext, please visit the publisher's website.The direct laser-deposited Inconel 718 (IN718) specimens were produced using 1073 nm, high power continuous wave (CW), IPG Ytterbium fibre laser and in-situ heat treatment. The laser power and in-situ heat treatment temperature were fixed while varying the laser scanning speed from 0.83 to 2.50 cm/s. The microstructure and micro-hardness of the IN718 specimens were characterized using an optical microscope (OM), scanning electron microscopy (SEM) equipped with an energy-dispersive X-ray spectroscopy (EDS or EDX) and Vickers system. The microstructure of the specimens consists of g-matrix as the primary phase, Nb-rich particles, constitutional liquation cave, liquation cracking and ductility-dip cracks. It was found that the micro-hardness profile of the IN718 specimens was gradually increased with the increase of the distance from the surface.enInconel 718In-situ heat treatmentLaser powerMechanical propertiesArticleMasina, B. N., Skhosane, B. S., & Tlotleng, M. (2020). Effect of in-situ heat treatment and process parameters on the laser-deposited IN718 microstructure and mechanical properties. http://hdl.handle.net/10204/11602Masina, Bathusile N, Besabakhe S Skhosane, and Monnamme Tlotleng "Effect of in-situ heat treatment and process parameters on the laser-deposited IN718 microstructure and mechanical properties." (2020) http://hdl.handle.net/10204/11602Masina BN, Skhosane BS, Tlotleng M. Effect of in-situ heat treatment and process parameters on the laser-deposited IN718 microstructure and mechanical properties. 2020; http://hdl.handle.net/10204/11602.TY - Article AU - Masina, Bathusile N AU - Skhosane, Besabakhe S AU - Tlotleng, Monnamme AB - The direct laser-deposited Inconel 718 (IN718) specimens were produced using 1073 nm, high power continuous wave (CW), IPG Ytterbium fibre laser and in-situ heat treatment. The laser power and in-situ heat treatment temperature were fixed while varying the laser scanning speed from 0.83 to 2.50 cm/s. The microstructure and micro-hardness of the IN718 specimens were characterized using an optical microscope (OM), scanning electron microscopy (SEM) equipped with an energy-dispersive X-ray spectroscopy (EDS or EDX) and Vickers system. The microstructure of the specimens consists of g-matrix as the primary phase, Nb-rich particles, constitutional liquation cave, liquation cracking and ductility-dip cracks. It was found that the micro-hardness profile of the IN718 specimens was gradually increased with the increase of the distance from the surface. DA - 2020 DB - ResearchSpace DP - CSIR KW - Inconel 718 KW - In-situ heat treatment KW - Laser power KW - Mechanical properties LK - https://researchspace.csir.co.za PY - 2020 SM - 2059-8521 T1 - Effect of in-situ heat treatment and process parameters on the laser-deposited IN718 microstructure and mechanical properties TI - Effect of in-situ heat treatment and process parameters on the laser-deposited IN718 microstructure and mechanical properties UR - http://hdl.handle.net/10204/11602 ER -