The effects of multiple repairs on Inconel 718 weld mechanical properties
Technical Report
·
OSTI ID:5846516
Inconel 718 weldments were repaired 3, 6, 9, and 13 times using the gas tungsten arc welding process. The welded panels were machined into mechanical test specimens, postweld heat treated, and nondestructively tested. Tensile properties and high cycle fatigue life were evaluated and the results compared to unrepaired weld properties. Mechanical property data were analyzed using the statistical methods of difference in means for tensile properties and difference in log means and Weibull analysis for high cycle fatigue properties. Statistical analysis performed on the data did not show a significant decrease in tensile or high cycle fatigue properties due to the repeated repairs. Some degradation was observed in all properties, however, it was minimal.
- Research Organization:
- National Aeronautics and Space Administration, Huntsville, AL (United States). George C. Marshall Space Flight Center
- OSTI ID:
- 5846516
- Report Number(s):
- N-92-14380; NASA-TM--103559; NAS--1.15:103559
- Country of Publication:
- United States
- Language:
- English
Similar Records
Fatigue-crack growth in Inconel 718 weldments at elevated temperatures
Selected mechanical properties of Inconel 718 and 706 weldments
Performance of repair welds on aged Cr-Mo piping girth welds
Journal Article
·
Sat Dec 31 23:00:00 EST 1977
· Weld. J. Res. Suppl.; (United States)
·
OSTI ID:6406528
Selected mechanical properties of Inconel 718 and 706 weldments
Journal Article
·
Wed Sep 01 00:00:00 EDT 1976
· Weld. J. (Miami); (United States)
·
OSTI ID:7332899
Performance of repair welds on aged Cr-Mo piping girth welds
Journal Article
·
Fri Oct 01 00:00:00 EDT 1999
· Journal of Materials Engineering and Performance
·
OSTI ID:20000466
Related Subjects
36 MATERIALS SCIENCE
360103* -- Metals & Alloys-- Mechanical Properties
ALLOY-NI53CR19FE19NB5MO3
ALLOYS
ALUMINIUM ADDITIONS
ALUMINIUM ALLOYS
ARC WELDING
CHROMIUM ALLOYS
COMPARATIVE EVALUATIONS
CORROSION RESISTANT ALLOYS
EVALUATION
FABRICATION
FATIGUE
GAS METAL-ARC WELDING
GAS TUNGSTEN-ARC WELDING
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
INCONEL 718
INCONEL ALLOYS
IRON ALLOYS
JOINING
JOINTS
MATERIALS
MATERIALS TESTING
MECHANICAL PROPERTIES
MOLYBDENUM ALLOYS
NICKEL ALLOYS
NICKEL BASE ALLOYS
NIOBIUM A
NONDESTRUCTIVE TESTING
TENSILE PROPERTIES
TESTING
WELDED JOINTS
WELDING
360103* -- Metals & Alloys-- Mechanical Properties
ALLOY-NI53CR19FE19NB5MO3
ALLOYS
ALUMINIUM ADDITIONS
ALUMINIUM ALLOYS
ARC WELDING
CHROMIUM ALLOYS
COMPARATIVE EVALUATIONS
CORROSION RESISTANT ALLOYS
EVALUATION
FABRICATION
FATIGUE
GAS METAL-ARC WELDING
GAS TUNGSTEN-ARC WELDING
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
INCONEL 718
INCONEL ALLOYS
IRON ALLOYS
JOINING
JOINTS
MATERIALS
MATERIALS TESTING
MECHANICAL PROPERTIES
MOLYBDENUM ALLOYS
NICKEL ALLOYS
NICKEL BASE ALLOYS
NIOBIUM A
NONDESTRUCTIVE TESTING
TENSILE PROPERTIES
TESTING
WELDED JOINTS
WELDING