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Title: Mean stress effects on high-cycle fatigue of Alloy 718

Abstract

This report covers an investigation of the effects of tensile mean stress on the high-cycle fatigue properties of Alloy 718. Three test temperatures (24, 427, and 649{degree}C) were employed, and there were tests in both strain and load control. Results were compared with three different models: linear Modified-Goodman, Peterson cubic, and stress-strain parameter. The linear Modified-Goodman model gave good correlation with actual test data for low and moderate mean stress values, but the stress-strain parameter showed excellent correlation over the entire range of possible mean stresses and therefore is recommended for predicting mean stress effects of Alloy 718. 13 refs., 12 figs.

Authors:
Publication Date:
Research Org.:
EG and G Idaho, Inc., Idaho Falls, ID (United States)
Sponsoring Org.:
USDOE; USDOE, Washington, DC (United States)
OSTI Identifier:
5493726
Report Number(s):
EGG-2050
ON: DE91015629
DOE Contract Number:  
AC07-76ID01570
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; INCONEL 718; FATIGUE; AGING; HIGH TEMPERATURE; LMFBR TYPE REACTORS; MECHANICAL PROPERTIES; REACTOR MATERIALS; STRAINS; STRESSES; 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; MOLYBDENUM ALLOYS; NICKEL ALLOYS; NICKEL BASE ALLOYS; NIOBIUM A; REACTORS; 360103* - Metals & Alloys- Mechanical Properties; 210500 - Power Reactors, Breeding

Citation Formats

Korth, G E. Mean stress effects on high-cycle fatigue of Alloy 718. United States: N. p., 1980. Web. doi:10.2172/5493726.
Korth, G E. Mean stress effects on high-cycle fatigue of Alloy 718. United States. https://doi.org/10.2172/5493726
Korth, G E. 1980. "Mean stress effects on high-cycle fatigue of Alloy 718". United States. https://doi.org/10.2172/5493726. https://www.osti.gov/servlets/purl/5493726.
@article{osti_5493726,
title = {Mean stress effects on high-cycle fatigue of Alloy 718},
author = {Korth, G E},
abstractNote = {This report covers an investigation of the effects of tensile mean stress on the high-cycle fatigue properties of Alloy 718. Three test temperatures (24, 427, and 649{degree}C) were employed, and there were tests in both strain and load control. Results were compared with three different models: linear Modified-Goodman, Peterson cubic, and stress-strain parameter. The linear Modified-Goodman model gave good correlation with actual test data for low and moderate mean stress values, but the stress-strain parameter showed excellent correlation over the entire range of possible mean stresses and therefore is recommended for predicting mean stress effects of Alloy 718. 13 refs., 12 figs.},
doi = {10.2172/5493726},
url = {https://www.osti.gov/biblio/5493726}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jul 01 00:00:00 EDT 1980},
month = {Tue Jul 01 00:00:00 EDT 1980}
}