High Temperature Corrosion Resistance of the Duplex Plasma Spray Coatings combined with Pack-cementation or with Slurry Coating

مکانیزم تشکیل پوشش نفوذی تیتانیوم بر سوپرآلیاژ پایه نیکلی B-1900

Although titanium has been recognized for its excellent bio-compatibility with human tissues and good corrosion resistance in some specific environments, little attention has been paid to the surface enrichment of the components by titanium. In this paper, titanium diffusion coating was formed on the surface of Ni-based alloy B-1900 via pack cementation technique and the microstructure of the ...

Corrosion Resistance of Bolt Coatings

High Temperature Corrosion Behavior of HVOF, Fe3Al Coatings

This work evaluates the suitability of iron aluminide coatings for use in high temperature fossil fuel combustion environments, such as boiler applications. The coatings are applied using High Velocity Oxy-Fuel (HVOF) thermal spray techniques. Bulk Fe3Al coatings are known to exhibit excellent oxidation and sulfidation resistance at high temperatures, however, the behavior of HVOF-deposited Fe3...

High-temperature Corrosion Behavior of Iron Aluminide Alloys and Coatings

A multi-year effort has been focused on optimizing the long-term oxidation performance of ingot-processed (IP) and oxide-dispersion strengthened (ODS) Fe3Al and iron aluminidebased coatings. Based on results from several composition iterations, a Hf-doped alloy (Fe28Al-2Cr-0.05at.%Hf) has been developed with significantly better high temperature oxidation resistance than other iron aluminides. ...

Nickel-based HVOF coatings promoting high temperature corrosion resistance of biomass-fired power plant boilers

Article history: Received 18 November 2013 Received in revised form 4 April 2014 Accepted 5 April 2014 Available online 3 May 2014