TY - GEN
T1 - Fireside corrosion and steamside oxidation behavior of HAYNES 282 alloy for A-USC applications
AU - Deodeshmukh, V. P.
AU - Pint, B. A.
N1 - Publisher Copyright:
Copyright © 2016 Electric Power Research Institute, Inc.
PY - 2016
Y1 - 2016
N2 - The Advanced Ultrasupcrcritical (A-USC) power plants are aimed to operate at steam inlet temperatures greater than 700°C; consequently, a complete materials overhaul is needed for the next-generation power plants. HAYNES® 282®, a gamma-prime strengthened alloy, is among the leading candidates because of its unique combination of properties, superior creep and LCF strength, fabricability and thermal stability. It is currently being evaluated in wrought and cast forms for A-USC turbine rotors, casings, boiler tubings, header, and valves. The candidate materials for A-USC applications not only require oxidation resistance for steam cycles but fireside corrosion resistance to coal ash is also of an extreme importance. In order to study the effect of both environments on the performance of 282 alloy, the alloy was exposed for extended periods in various oxidizing environments, such as air, air plus water vapor (10%), and 17bar steam up to 900°C. The fireside corrosion resistance of 282 alloy was evaluated at 700°C in synthetic coal ash and at 843°C in alkali salt deposits in a controlled gaseous environment.
AB - The Advanced Ultrasupcrcritical (A-USC) power plants are aimed to operate at steam inlet temperatures greater than 700°C; consequently, a complete materials overhaul is needed for the next-generation power plants. HAYNES® 282®, a gamma-prime strengthened alloy, is among the leading candidates because of its unique combination of properties, superior creep and LCF strength, fabricability and thermal stability. It is currently being evaluated in wrought and cast forms for A-USC turbine rotors, casings, boiler tubings, header, and valves. The candidate materials for A-USC applications not only require oxidation resistance for steam cycles but fireside corrosion resistance to coal ash is also of an extreme importance. In order to study the effect of both environments on the performance of 282 alloy, the alloy was exposed for extended periods in various oxidizing environments, such as air, air plus water vapor (10%), and 17bar steam up to 900°C. The fireside corrosion resistance of 282 alloy was evaluated at 700°C in synthetic coal ash and at 843°C in alkali salt deposits in a controlled gaseous environment.
UR - http://www.scopus.com/inward/record.url?scp=85018399588&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:85018399588
T3 - Advances in Materials Technology for Fossil Power Plants - Proceedings from the 8th International Conference
SP - 912
EP - 923
BT - Advances in Materials Technology for Fossil Power Plants - Proceedings from the 8th International Conference
A2 - Shingledecker, John
A2 - Siefert, J.
A2 - Parker, Jonathan
PB - ASM International
T2 - 8th International Conference on Advances in Materials Technology for Fossil Power Plants
Y2 - 11 October 2016 through 14 October 2016
ER -