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Dissimilar metals joint evaluation
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Wakefield, M. E. Apodaca, L. E. |
| Copyright Year | 1974 |
| Description | Dissimilar metals tubular joints between 2219-T851 aluminum alloy and 304L stainless steel were fabricated and tested to evaluate bonding processes. Joints were fabricated by four processes: (1) inertia (friction) weldings, where the metals are spun and forced together to create the weld; (2) explosive welding, where the metals are impacted together at high velocity; (3) co-extrusion, where the metals are extruded in contact at high temperature to promote diffusion; and (4) swaging, where residual stresses in the metals after a stretching operation maintain forced contact in mutual shear areas. Fifteen joints of each type were prepared and evaluated in a 6.35 cm (2.50 in.) O.D. size, with 0.32 cm (0.13 in.) wall thickness, and 7.6 cm (3.0 in) total length. The joints were tested to evaluate their ability to withstand pressure cycle, thermal cycle, galvanic corrosion and burst tests. Leakage tests and other non-destructive test techniques were used to evaluate the behavior of the joints, and the microstructure of the bond areas was analyzed. |
| File Size | 54800595 |
| Page Count | 119 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19740014090 |
| Archival Resource Key | ark:/13960/t3518s31w |
| Language | English |
| Publisher Date | 1974-04-01 |
| Access Restriction | Open |
| Subject Keyword | Materials, Metallic Welded Joints Metal Joints Burst Tests Weld Strength Weld Tests Mechanical Properties Metal Working Aluminum Alloys Pipes Tubes Stainless Steels 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 |
