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Title: Effect of product form upon fatigue-crack growth behavior in Alloy 718: additional results

Technical Report ·
DOI:https://doi.org/10.2172/711648· OSTI ID:711648

A previous study had characterized the fatigue-crack growth behavior of four wrought product forms (sheet, plate, bar and forging) from a single heat of Alloy 718 and concluded that there were no consistent trends in the crack growth rate results that could be attributed to product form variability. The present study adds one additional product form (gas-tungsten-arc weldments) from the same heat, and compares the behavior to that exhibited by the wrought product forms. Two different precipitation heat-treatments were employed at each of five test temperatures (24, 316, 427, 538, and 649{sup 0}C).

Research Organization:
Hanford Engineering Development Lab., Richland, WA (United States)
DOE Contract Number:
AC06-76FF02170
OSTI ID:
711648
Report Number(s):
HEDL-TME-80-49
Resource Relation:
Other Information: PBD: Aug 1980
Country of Publication:
United States
Language:
English