Lekala, MBVan der Merwe, JWPityana, Sisa L2013-03-252013-03-252012-05Lekala, MB, Van der Merwe, JW and Pityana, SL. 2012. Laser surface alloying of 316L stainless steel with Ru and Ni mixtures. International Journal of Corrosion, doi:10.1155/2012/1624251687-93251687-9333http://www.hindawi.com/journals/ijc/2012/162425/http://hdl.handle.net/10204/6610Copyright: 2012 Lekala et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.The surfaces of AISI 316L stainless steel were laser alloyed with ruthenium powder and a mixture of ruthenium and nickel powders using a cw Nd:YAG laser set at fixed operating parameters. The microstructure, elemental composition, and corrosion characteristics of the alloyed zone were analyzed using optical and scanning electron microscopy (SEM), energy dispersive Xray spectroscopy (EDX), and corrosion potential measurements. The depth of alloyed zone was measured using the AxioVision programand found to be approximately 1.8mmfor all the alloyed specimens. Hardness profile measurements through the surface substrate interface showed a significant increase from 160HV for the substrate to a maximum of 247HV for the alloyed layer. The sample laser alloyed with 80wt% Ni-20wt% presented the most noble corrosion potential (Ecorr) of -0.18 V and the lowest corrosion current density (icorr).enAISI 316L stainless steelScanning electron microscopySEMCorrosion potential measurementsArticleLekala, M., Van der Merwe, J., & Pityana, S. L. (2012). Laser surface alloying of 316L stainless steel with Ru and Ni mixtures. http://hdl.handle.net/10204/6610Lekala, MB, JW Van der Merwe, and Sisa L Pityana "Laser surface alloying of 316L stainless steel with Ru and Ni mixtures." (2012) http://hdl.handle.net/10204/6610Lekala M, Van der Merwe J, Pityana SL. Laser surface alloying of 316L stainless steel with Ru and Ni mixtures. 2012; http://hdl.handle.net/10204/6610.TY - Article AU - Lekala, MB AU - Van der Merwe, JW AU - Pityana, Sisa L AB - The surfaces of AISI 316L stainless steel were laser alloyed with ruthenium powder and a mixture of ruthenium and nickel powders using a cw Nd:YAG laser set at fixed operating parameters. The microstructure, elemental composition, and corrosion characteristics of the alloyed zone were analyzed using optical and scanning electron microscopy (SEM), energy dispersive Xray spectroscopy (EDX), and corrosion potential measurements. The depth of alloyed zone was measured using the AxioVision programand found to be approximately 1.8mmfor all the alloyed specimens. Hardness profile measurements through the surface substrate interface showed a significant increase from 160HV for the substrate to a maximum of 247HV for the alloyed layer. The sample laser alloyed with 80wt% Ni-20wt% presented the most noble corrosion potential (Ecorr) of -0.18 V and the lowest corrosion current density (icorr). DA - 2012-05 DB - ResearchSpace DP - CSIR KW - AISI 316L stainless steel KW - Scanning electron microscopy KW - SEM KW - Corrosion potential measurements LK - https://researchspace.csir.co.za PY - 2012 SM - 1687-9325 SM - 1687-9333 T1 - Laser surface alloying of 316L stainless steel with Ru and Ni mixtures TI - Laser surface alloying of 316L stainless steel with Ru and Ni mixtures UR - http://hdl.handle.net/10204/6610 ER -