This is a past event.

for Advanced – UltraSuperCritical (A-USC) Steam Turbine Applications

Materials Science and Engineering Seminar

Dr. Phil Maziasz
Oak Ridge National Laboratory
Oak Ridge, TN

Abstract: Materials for advanced ultrasupercritical (A-USC) steam power plants will require materials that can withstand prolonged exposure to steam temperatures of 760°C or more, which means they must be Ni-based superalloys.  A-USC coal-fired power plants will be significantly more efficient, have lower emissions and use less coal.  The Ni-based superalloys for A-USC plants include Inconel 740H for boiler and superheater tubing, and wrought and cast Haynes 282 alloy for tubine rotor, blading, and casing applications.  The U.S. A-USC materials program has completed the first phase of materials testing and is currently in a ComTest phase, with the sight being a coal-fired plant at Southern Company in Alabama.  This lecture will focus on materials properties data and testing of Haynes 282 alloy for the steam turbine application.  Tensile and creep properties at temperatures up to 800°C will be considered, as well as fatigue and welding.  The engineering steps for ComTest will be highlighted as well as plans moving forward to a demonstration plant.

Bio: Dr. Philip J. Maziasz is a Distinguished Research Scientist and a Battelle Distinguished Inventor at the Oak Ridge National Laboratory in Oak Ridge TN, where he has worked for 43 years.   He is a member of the Materials Science and Technology Division.  Dr. Maziasz graduated from the University of Michigan with a B.S. Degree in Materials and Metallurgical Engineering in Dec. 1973, and with a M.S. Degree in Nuclear Engineering in Dec. 1974.  He received a Ph.D. in Metallurgical Engineering in Dec., 1984 from the University of Tennessee in Knoxville.  He became a Fellow of ASM-International in 1994, and won the William Hunt Eisenman Award from ASM in 2012.  He won the Champion H. Mathewson Award from TMS in 2014.  Dr. Maziasz has 5 R&D 100 Awards, over 20 patents and invention disclosures, and 290 publications.  He is an expert in high temperature physical metallurgy and is an alloy developer with substantial success at commercialization, particularly for cast CF8C-Plus austenitic stainless steel.  He is also President of his own consulting company, High Temperature Alloys, Inc. which was founded in 2003.