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Title: Effect of heat treatment and heat-to-heat variations in the fatigue-crack growth response of Alloy 718

The fatigue-crack growth behavior of seven heats of Alloy 718 was studied at five different test temperatures. These seven heats represented at least four different producers, four different product forms, two melt practices, and most of the heat were tested in two different heat-treated conditions. Heat-to-heat variations were noted; these were most obvious in material given the conventional heat-treatment. 8 figs., 5 tabs.
Authors:
;
Publication Date:
OSTI Identifier:
5493731
Report Number(s):
HEDL-TME-80-9
ON: DE91015606; TRN: 91-020436
DOE Contract Number:
AC06-76FF02170
Resource Type:
Technical Report
Research Org:
Hanford Engineering Development Lab., Richland, WA (United States)
Sponsoring Org:
DOE; USDOE, Washington, DC (United States)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; INCONEL 718; CRACK PROPAGATION; FATIGUE; ANNEALING; CHEMICAL COMPOSITION; HEAT TREATMENTS; LMFBR TYPE REACTORS; PRECIPITATION; REACTOR MATERIALS; ALLOY-NI53CR19FE19NB5MO3; ALLOYS; ALUMINIUM ADDITIONS; ALUMINIUM ALLOYS; BREEDER REACTORS; CHROMIUM ALLOYS; CORROSION RESISTANT ALLOYS; EPITHERMAL REACTORS; FAST REACTORS; FBR TYPE REACTORS; HEAT RESISTANT MATERIALS; HEAT RESISTING ALLOYS; INCONEL ALLOYS; IRON ALLOYS; LIQUID METAL COOLED REACTORS; MATERIALS; MECHANICAL PROPERTIES; MOLYBDENUM ALLOYS; NICKEL ALLOYS; NICKEL BASE ALLOYS; NIOBIUM A; REACTORS; SEPARATION PROCESSES 360103* -- Metals & Alloys-- Mechanical Properties; 210500 -- Power Reactors, Breeding