The fracture toughness database for F82H displays some anomalous behavior. Metallographic examination reveals banding in the center of 25 mm thick F82H plate, which is more evident in transverse section. The banding is shown to arise because some grains are etched on a very fine scale whereas the remainder is etched more strongly and better delineates the martensite lath structure. However, the banding found does not provide explanation for the anomalous fracture toughness behavior.
Revised: May 2, 2007 |
Published: September 3, 2003
Citation
Gelles D.S., and M. Sokolov. 2003.FRACTURE TOUGHNESS VARIABILITY IN F82H. In Fusion Materials: Semiannual Progress Report For Period Ending June 30, 2003, edited by Ron Klueh and Renetta Godfrey. 49-55. Washington, District Of Columbia:DOE Office of Fusion Energy Sciences.PNNL-SA-39595.