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1篇 您的检索式:作者名="M.H.Shariat"
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1Effect of Ringer's Solution on Wear and Friction of Stainless Steel 316L after Plasma Electrolytic Nitrocarburising at Low Voltages显示文摘A plasma electrolytic nitrocarburising(PEN/C) process was performed on stainless steel 316L to improve the surface properties for using as medical implants.A bath was optimised to reduce the required voltage to 150 volts.Aqueous urea-based solutions with 10% NH 4 Cl were prepared with slightly different amounts of Na 2 CO 3 to optimise the electrolyte composition.The surface and the cross-section morphologies were studied by scanning electron microscopy.The microstructure and the chemical composition of samples were investigated by X-ray diffraction(XRD) and energy dispersive X-ray(EDX) techniques.The microstructure of the outer layer of the coatings was found to be a complex oxide containing Cr and Fe.The wear properties of the samples were examined by using a pin on disk wear test with Ringer s solution and were compared with their wear properties in the ambient atmosphere.The Ringer s solution acted as a lubricant,reducing friction coefficient.Hardness and roughness were also studied.The bath with the composition of 10% NH 4 Cl and 3% Na 2 CO 3 exhibited the best tribological properties.The results showed that the tribological properties of treated samples were improved and the wear mechanism was abrasion of the pin.N.Afsar Kazerooni M.E.Bahrololoom M.H.Shariat F.Mahzoon T.Jozaghi 2011Journal of Materials Science & Technology2011,27,10:3
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