|Author||Kargol, J. A.|
|Source||United States Department of Energy Office of Scientific and Technical Information|
|Subject Keyword||MATERIALS SCIENCE ♦ HASTELLOYS ♦ HYDROGEN EMBRITTLEMENT ♦ PHYSICAL PROPERTIES ♦ AGING ♦ ANNEALING ♦ CARBIDES ♦ COLD WORKING ♦ DIFFUSION ♦ HIGH TEMPERATURE ♦ MEDIUM TEMPERATURE ♦ NICKEL BASE ALLOYS ♦ NIOBIUM ♦ PERMEABILITY ♦ TRAPPING ♦ ALLOYS ♦ CARBON COMPOUNDS ♦ ELEMENTS ♦ EMBRITTLEMENT ♦ FABRICATION ♦ HEAT RESISTANT MATERIALS ♦ HEAT RESISTING ALLOYS ♦ HEAT TREATMENTS ♦ IRON ALLOYS ♦ MATERIALS ♦ MATERIALS WORKING ♦ METALS ♦ MOLYBDENUM ALLOYS ♦ NICKEL ALLOYS ♦ TRANSITION ELEMENTS 360104* -- Metals & Alloys-- Physical Properties ♦ Metals & AlloysPreparation & Fabrication ♦ Metals & AlloysCorrosion & Erosion|
|Abstract||Hydrogen transport parameters have been measured in HASTELLOY Alloys C-276 and over the temperature range of 17 to 90/degree/C. The two alloys exhibited dramatically different hydrogen behavior. For Alloy C-276, diffusivity in both the cold worked and annealed conditions decreased by a factor of two following low temperature (500/degree/C) aging. Hydrogen trapping was not observed. An analysis of hydrogen transport in Alloy G indicated reversible and irreversible trapping by niobium substitutional atoms and second phase carbides, respectively. The results are related to hydrogen embrittlement tendencies. 37 refs.|
|Learning Resource Type||Article|
|Publisher Place||United States|
|Journal||Metall. Trans., A|
|Organization||Univ of Notre Dame, Indiana, USA|
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