Impact Erosion and Corrosion Behavior of Multilayer Metallic Nitride Structures Deposited on Aluminum and Steel Substrates
(Room Wabash 2)
11 May 16
3:30 PM
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3:50 PM
Multilayer structures consisting of alternating ceramic (metallic nitride) and metallic coatings of hundreds of nanometer thickness size were deposited on aluminum and steel substrates using the DC high vacuum magnetron sputtering deposition equipment. The chemical composition of the structures was characterized using the X-Ray diffraction analysis and scanning electron microscopy/ energy dispersive X-ray spectroscopy (SEM/ EDS) techniques and their surface morphology was obtained using the scanning electron microscopy/ scanning transmission electron microscopy (SEM/ STEM) system. The thickness of the multilayer structures and nanohardness of the samples was evaluated on silicon substrates using the atomic force microscopy (AFM) interfaced with a Hysitron Triboscope . All samples were evaluated using the impact erosion tester for the optimum coating composition. Additionally corrosion tests were performed on the steel coated structures.