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The effects of multiple repairs on inconel 718 weld mechanical properties
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Russell, C. K. Nunes Jr., A. C. Moore, D. |
| Copyright Year | 1991 |
| Description | 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. |
| File Size | 1189305 |
| Page Count | 40 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19920005162 |
| Archival Resource Key | ark:/13960/t58d4tg5x |
| Language | English |
| Publisher Date | 1991-12-01 |
| Access Restriction | Open |
| Subject Keyword | Mechanical Engineering Degradation Panels Fatigue Life Welded Joints Statistical Analysis Life Durability Gas Tungsten Arc Welding Tensile Properties Weibull Density Functions Inconel Trademark Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
