Search Results - "Dahl, Kristian V."

Gaseous thermochemical synthesis and characterization of mixed interstitial phases in the Ti-C-O system by Kværndrup, Frederik Bojsen, Dahl, Kristian V., Ståhl, Kenny, Somers, Marcel A.J., Winther, Grethe, Christiansen, Thomas L.

“…Titanium grade 2 thin foils were carbo-oxidized at 800 °C in a thermogravimetric analyzer in CO gas for 20 - 100 hours. The synthesized thin foils were…”
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Corrosion of welds in biomass power plants by Montgomery, Melanie, Dahl, Kristian V., Hald, John

“…In addition to understanding the corrosion of base materials in superheater tubes in biomass power plants, it is also important to understand how welded joints…”
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Thermochemical surface hardening of Ti-6Al-4V: On the role of temperature and treatment media by Meng, Yichen, Villa, Matteo, Dahl, Kristian V., Wang, Bo, Drouet, Michel, Dubois, Jean-Baptiste, Somers, Marcel A.J., Christiansen, Thomas L.

“…The present work addresses the surface hardening and heat treatment response of Ti-6Al-4V grades G5 and G23 on thermochemical surface treatment in different…”
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KCl‐induced corrosion of Ni‐based alloys containing 35–45 wt% Cr by Malede, Yohanes C., Simon, Julien P., Jonsson, Torbjörn, Montgomery, Melanie, Dahl, Kristian V., Hald, John

“…Ni–(35–45)Cr–4Nb alloys containing different fractions of α‐Cr were exposed to potassium chloride (KCl)‐induced corrosion. The corrosion exposures were carried…”
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Nitridation of grate in a biomass‐fired boiler by Montgomery, Melanie, Dahl, Kristian V., Grumsen, Flemming B., Kværndrup, Frederik B., Hald, John

“…After a straw‐fired power plant in Denmark had been in operation for 16 years with 93,815 hr operation, there was a need for overlay welding repair of the…”
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Effects of Different Fuel Specifications and Operation Conditions on the Performance of Coated and Uncoated Superheater Tubes in Two Different Biomass-Fired Boilers by Wu, Duoli, Dahl, Kristian V, Madsen, Jesper L, Christiansen, Thomas L, Montgomery, Melanie, Hald, John

“…Fireside corrosion is a serious concern in biomass firing power plants such that the efficiency of boilers is limited by high temperature corrosion…”
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Microstructure of Precipitation Hardenable Powder Metallurgical Ni Alloys Containing 35 to 45 pct Cr and 3.5 to 6 pct Nb by Bihlet, Uffe D., Dahl, Kristian V., Somers, Marcel A. J.

“…Ni-based alloys with high Cr contents are not only known for their excellent high temperature and hot corrosion resistance, but are also known for poor…”
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Synchrotron X-ray diffraction investigation of the effect of cryogenic treatment on the microstructure of Ti-6Al-4V by Meng, Yichen, Villa, Matteo, Dahl, Kristian V., Christiansen, Thomas L., Somers, Marcel A.J.

“…•Subjecting Ti-6Al-4V to CT did not result in any measurable reduction in β fraction.•The CT has no measurable influence on hardness or microstructure of…”
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Kinetics of interstitial uptake during gaseous carbo-oxidizing of titanium foils by Kværndrup, Frederik Bojsen, Dahl, Kristian V., Poquillon, Dominique, Ståhl, Kenny, Somers, Marcel A.J., Christiansen, Thomas L.

“…•The kinetics of C and O uptake depends on the microstructure evolution.•At 600-700°C O diffusion is the rate-determined step.•Above 850°C a short circuit…”
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Diffraction based identification of an elusive FCC phase in carbo-oxidized titanium by Kværndrup, Frederik B., Grumsen, Flemming B., Kadkhodazadeh, Shima, Dahl, Kristian V., Somers, Marcel A.J., Christiansen, Thomas L.

“…A face-centered cubic (FCC) phase formed during the carbo-oxidation of hexagonal close-packed (HCP) α-Titanium at 600 to 700 °C. The FCC crystal structure was…”
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New Stainless Steel Alloys for Low Temperature Surface Hardening? by Christiansen, Thomas L., Dahl, Kristian V., Somers, Marcel A. J.

“…The present contribution showcases the possibility for developing new surface hardenable stainless steels containing strong nitride/carbide forming elements…”
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