... aluminum permission Houston microscopy alloy Micrograph manuscript Pipeline Corrosion riser corrosion Publication Division mo-si-b-ti-fe alloy aluminide coating coupon aluminized coupon oxidation resistance substrate Aluminide Coatings on Mo-Si-B-Ti-Fe Alloy Zachery Walsh, Shahan...

... coatings, e.g., diffusional aluminide coatings. The Halide Activated Pack Cementation (HAPC) process is one approach to achieve protection against corrosion at elevated temperatures. The coatings applied by the HAPC method are affected by processing variables, e.g., temperature, time, and type of activator...

... coatings, e.g., diffusional aluminide coatings. The Halide Activated Pack Cementation (HAPC) process is one approach to achieve protection against corrosion at elevated temperatures. The coatings applied by the HAPC method are affected by processing variables, e.g., temperature, time, and type of activator...

... nh 4 stainless steel manuscript fluoride aluminide coating houston aluminum concentration alcl 3 ammonium chloride metals & mining texas 77084 coating thickness publication division EFFECT OF ACTIVATORS IN PACK ALUMINIZING OF UNS S30400 STAINLESS STEEL Armando R. Coronado, Shahan...

... of iron-based alloy components can be drastically reduced when protected by aluminide or silicon- and chromium-modified aluminide coatings in the exhaust/steam environments of advanced power generation applications. Diffusion coatings are conventionally produced by slurry aluminization or chemical vapor...

... Aluminide Coatings on 304 Stainless Steel Kevin L. Smith, Armen Kutyan, Shaghik A. Abolian, Tom F. Krenek, Stephanie A. Salas, Vilupanur A. Ravi California State Polytechnic University, Pomona 3801, W. Temple Avenue Pomona, CA 91768 USA ABSTRACT Type 304 stainless steel coupons were aluminized...

... durability in harsh environments. Coating application represents a cost-effective solution, and some aluminide coatings deposited on Fe and Nibased alloys have indeed demonstrated excellent oxidation resistance in aggressive atmospheres at high temperature. However, the coating impact on the substrate...

...2011 1 Performance of Diffusion Aluminide Coatings Applied on Alloy CF8C-Plus at 800 C Deepak Kumar Materials Science and Technology Division Oak Ridge National Laboratory 1 Bethel Valley Rd. Oak Ridge, TN, 37831, USA Sebastien Dryepondt Materials Science and Technology Division Oak Ridge National...

.... The oxidation performance of Gr.315 was consistent with its Cr content and with that of Fe-2.25Cr (Grade 22). In order to improve oxidation resistance in the presence of water vapor, thin aluminide coatings on Gr.315 and Gr.22 were evaluated at 550°-800°C. Early coating failures compared to similar coatings...

... only slightly affected by pre oxidation for 2000 h in steam at 800°C. Application of an aluminide coating protected the alloy from oxidation but decreased the substrate mechanical properties because of the weak coating mechanical properties. Stress was found to have an effect on the Fe-rich oxide grown...

... Pipeline Corrosion well integrity alloy 751 flowline corrosion riser corrosion oxidation Subsurface Corrosion normalized composition materials and corrosion Line Profile slurry coating composition aluminide coating CrAlY specimen mass gain humid air Al content coating...

... ABSTRACT Thin pack and chemical vapor deposited (CVD) aluminide coatings on commercial ferriticmartensitic Fe-9Cr-2W steel are being investigated by creep and corrosion testing at 650°C. Mass gain results indicate that these coatings are protective at 650°C in humid air. Comparison with bare...

... ABSTRACT Long-term (> 10,000h) oxidation behavior of aluminide coatings made by chemical vapor deposition (CVD) or pack cementation on representative ferritic (Fe-9Cr-1Mo) and austenitic (type 304L stainless steel) are being studied in air + 10% water vapor in the temperature range of 650...

... Pipeline Corrosion riser corrosion materials and corrosion well integrity metals & mining Subsurface Corrosion resistance gas turbine aluminide coating oxide alloy application thermal barrier coating proceedings water vapor flowline corrosion US government oxidation hot...

... had the best resistance overall. INTRODUCTION An aluminide-based coating is often applied to the superalloy hot-section components of a turbine in order to extend the service life of those components. The aluminide coating can confer protection by forming a continuous and adherent thermally grown...

... construction materials materials and corrosion oxide scale aluminium content composition fecral alloy foil Pipeline Corrosion Upstream Oil & Gas aluminized alloy 800 aluminide coating radial optical section foil sample alloy 800 aluminized sample aluminide diffusion coating...

... COMPARITIVE STUDY OF THE LOW- AND HIGH-TEMPERATURE HOT- CORROSION RESISTANCE OF VARIOUS ALUMINIDE COATINGS Vinay Deodeshmukh and Brian Gleeson Dept. Materials Science and Engineering 2220 Hoover Hall Iowa State University Ames, IA 50011-2300 Email: [email protected] ABSTRACT Salt-induced hot...

... provide easy pathways to deleterious gases, and maintain corrosion resistance over the design life of the high temperature component. Aluminide coatings on transition metals and alloys such as iron, nickel and cobalt are [3-FeA1, [3- NiA1, and [3-CoAl, respectively. Diffusion aluminide coatings...

... is illustrated in Figures 2 and 3 while the representative condition of the I HP stage nozzles is shown in Figures 4 and 5. The 1 stage HP nozzle was alloy X-40 with no external or internal coating, while the I stage HP blade was Rend 80 with a proprietary external platinum-aluminide coating and an internal...