STP1046V2

    Charpy Impact Test Results of Ferritic Alloys Irradiated to 10 dpa at 55°C

    Published: Jan 1990


      Format Pages Price  
    PDF (136K) 6 $25   ADD TO CART


    Abstract

    Miniature Charpy specimens of HT-9 in base metal, weld metal, and heat affected zone (HAZ) metal conditions, and 9Cr-1Mo in base metal and weld metal conditions have been tested following irradiation in the High Flux Isotope Reactor (HFIR) at 55°C to ≈5 and 10 dpa. All specimen conditions are found to have degraded properties (both DBTT and USE). 9Cr-Mo degraded more than HT-9, and weld metal performed worse than base metal, which performed worse than HAZ material. As a function of dose, property degradation was approximately linear, indicating that degradation response had not saturated by 10 dpa.

    Keywords:

    martensitic alloys, steels, Charpy impact testing, neutron irradiation, HFIR, ductile-brittle transition temperature (DBTT), upper-shelf energy (USE)


    Author Information:

    Hu, Wan-Liang
    Senior engineervice-president, Westinghouse Hanford CompanyInnovative Technology Laboratory, Richland, WA

    Gelles, David S.
    Senior engineerstaff scientist, Westinghouse Hanford CompanyPacific Northwest Laboratory, Richland, WA


    Paper ID: STP49466S

    Committee/Subcommittee: E10.07

    DOI: 10.1520/STP49466S


    CrossRef ASTM International is a member of CrossRef.