Mathoho, IAkinlabi, ETArthur, Nana KKTlotleng, Monnamme2021-07-092021-07-092020-08Mathoho, I., Akinlabi, E., Arthur, N.K. & Tlotleng, M. 2020. Impact of DED process parameters on the metallurgical characteristicsof 17-4 PH SS deposited using DEDI. <i>CIRP Journal of Manufacturing Science and Technology, 31.</i> http://hdl.handle.net/10204/120431755-5817https://doi.org/10.1016/j.cirpj.2020.07.007http://hdl.handle.net/10204/12043This study investigated the influence direct energy deposition (DED) process parameters have on the metallurgical characteristics (porosity, microstructural evolution, microhardness, and corrosion behavior) of 17−4 PH stainless steel powder. During the deposition, laser power and scanning speed were varied from 300 W to 400 W and from 7.62 mm/s to 12.7 mm/s, respectively while powder feed rate and the hatch overlap were kept constant at 4.7 g/min and 75%, respectively. Coupons were prepared for metallographic characterization in the as-built and heat treated condition. It was established that laser power scanning speed, and heat treatment had a meaningful impact on metallurgical characteristics studied.Abstracten17-4 PH stainless steelCorrosionLENSMicrohardnessMicrostructurePorosityArticleMathoho, I., Akinlabi, E., Arthur, N. K., & Tlotleng, M. (2020). Impact of DED process parameters on the metallurgical characteristicsof 17-4 PH SS deposited using DEDI. <i>CIRP Journal of Manufacturing Science and Technology, 31</i>, http://hdl.handle.net/10204/12043Mathoho, I, ET Akinlabi, Nana KK Arthur, and Monnamme Tlotleng "Impact of DED process parameters on the metallurgical characteristicsof 17-4 PH SS deposited using DEDI." <i>CIRP Journal of Manufacturing Science and Technology, 31</i> (2020) http://hdl.handle.net/10204/12043Mathoho I, Akinlabi E, Arthur NK, Tlotleng M. Impact of DED process parameters on the metallurgical characteristicsof 17-4 PH SS deposited using DEDI. CIRP Journal of Manufacturing Science and Technology, 31. 2020; http://hdl.handle.net/10204/12043.TY - Article AU - Mathoho, I AU - Akinlabi, ET AU - Arthur, Nana KK AU - Tlotleng, Monnamme AB - This study investigated the influence direct energy deposition (DED) process parameters have on the metallurgical characteristics (porosity, microstructural evolution, microhardness, and corrosion behavior) of 17−4 PH stainless steel powder. During the deposition, laser power and scanning speed were varied from 300 W to 400 W and from 7.62 mm/s to 12.7 mm/s, respectively while powder feed rate and the hatch overlap were kept constant at 4.7 g/min and 75%, respectively. Coupons were prepared for metallographic characterization in the as-built and heat treated condition. It was established that laser power scanning speed, and heat treatment had a meaningful impact on metallurgical characteristics studied. DA - 2020-08 DB - ResearchSpace DP - CSIR J1 - CIRP Journal of Manufacturing Science and Technology, 31 KW - 17-4 PH stainless steel KW - Corrosion KW - LENS KW - Microhardness KW - Microstructure KW - Porosity LK - https://researchspace.csir.co.za PY - 2020 SM - 1755-5817 T1 - Impact of DED process parameters on the metallurgical characteristicsof 17-4 PH SS deposited using DEDI TI - Impact of DED process parameters on the metallurgical characteristicsof 17-4 PH SS deposited using DEDI UR - http://hdl.handle.net/10204/12043 ER -24581