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The effects of laser peening and shot peening on mechanical properties in friction stir welded 7075-t7351 aluminum
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Hatamleh, Omar |
| Copyright Year | 2006 |
| Description | Peening techniques like laser peening and shot peening were used to modify the surface of friction stir welded 7075-T7351 Aluminum Alloy specimens. The tensile coupons were machined such as the loading was applied in a direction perpendicular to the weld direction. The peening effects on the global and local mechanical properties through the different regions of the weld were characterized and assessed. The surface hardness levels resulting from various peening techniques were also investigated for both sides of the welds. Shot peening resulted in an increase to surface hardness levels, but no improvement was noticed on the mechanical properties. In contrast, mechanical properties were improved by laser peening when compared to the unpeened material. |
| File Size | 742459 |
| Page Count | 23 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20070003689 |
| Archival Resource Key | ark:/13960/t0tr0w42b |
| Language | English |
| Publisher Date | 2006-01-01 |
| Access Restriction | Open |
| Subject Keyword | Metals And Metallic Materials Scanning Electron Microscopy Mechanical Properties Aluminum Alloys Shot Peening Hardness Stress-strain Diagrams Asymmetry Lasers Friction Stir Welding Heat Affected Zone Microstructure Fractography Tensile Properties Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
