کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1656359 | 1517580 | 2016 | 8 صفحه PDF | دانلود رایگان |

• New coating against metal dusting as well as oxidation at high temperatures is presented.
• The coating concept combines oxide barrier formation and catalytic inhibition approach.
• Oxide scale formation during exposure in carbon containing, reducing as well as oxidizing atmosphere at 620 °C.
A new coating against metal dusting is developed by the combination of a catalytic inhibition approach with a classical oxide barrier. Coatings were manufactured by co-deposition of tin and aluminum on nickel plated alloy 800H via powder pack cementation with different dwell times. The resulting coatings consist of two phases, a nickel-aluminide phase as oxide forming reservoir and an underlying nickel-tin phase which catalytically inhibits carbon deposition. Coated samples were exposed to H2-22%CO-10%H2O as a laboratory metal dusting environment as well as air at 620 °C. Cross sectional analysis revealed no sign for metal dusting and the formation of a thin alumina layer at the surface.
Journal: Surface and Coatings Technology - Volume 299, 15 August 2016, Pages 29–36