Corrosion and Creep of Candidate Alloys in High Temperature Helium and Steam Environments for the NGNP

Technical Report · Fri Jun 21 04:00:00 EDT 2013

DOI:https://doi.org/10.2172/1087118· OSTI ID:1087118

Was, Gary ^[1]; Jones, J. W. ^[2]

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1. UT-Battelle LLC/ORNL, Oak Ridge, TN (United States); Nuclear Energy University Programs
2. UT-Battelle LLC/ORNL, Oak Ridge, TN (United States)

This project aims to understand the processes by which candidate materials degrade in He and supercritical water/steam environments characteristic of the current NGNP design. We will focus on understanding the roles of temperature, and carbon and oxygen potential in the 750-850 degree C range on both uniform oxidation and selective internal oxidation along grain boundaries in alloys 617 and 800H in supercritical water in the temperature range 500-600 degree C; and examining the application of static and cyclic stresses in combination with impure He environments in the temperature rang 750-850 degree C; and examining the application of static and cyclic stresses in combination with impure He environments in the temperature range 750-850 degree Cover a range of oxygen and carbon potentials in helium. Combined, these studies will elucidate the potential high damage rate processes in environments and alloys relevant to the NGNP.

• Research Organization: UT-Battelle LLC/ORNL, Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC07-05ID14517
• OSTI ID: 1087118
• Report Number(s): ID--14517/09-768
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE