Abstract
The study of the γ in inertia friction welded Alloy 720Li in the as-welded and two different PWHT conditions was presented. The high energy synchrotron diffraction measurements revealed that in the as-welded condition, the HAZ was depleted in γ with a trough observed at about 1.5 mm from the weld line. Hardness profile was recorded in order to map the variation of strength across weld line. The microstructure was studied by means of high-energy synchrotron diffraction and high resolution electron microscopy. The results show that as-welded condition exhibited slightly increased lattice misfit between γ and γ at the weld line and 2.5 m from it, which seems to increase the strength of the material.
| Original language | English |
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| Title of host publication | Superalloys 2004 |
| Subtitle of host publication | Proceedings of the International Symposium on Superalloys |
| Editors | K. A. Green, T. M. Pollock, H. Harada, T. E. Howson, R. C. Reed, J. J. Schirra, S. Walston |
| Place of Publication | Warrendale, PA |
| Publisher | Minerals, Metals & Materials Society |
| Pages | 477-484 |
| Number of pages | 8 |
| ISBN (Print) | 087339576X |
| Publication status | Published - 2004 |
| Event | SUPERALLOYS 2004 - Tenth International Symposium on Superalloys - Champion, PA Duration: 1 Jul 2004 → … |
Conference
| Conference | SUPERALLOYS 2004 - Tenth International Symposium on Superalloys |
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| City | Champion, PA |
| Period | 1/07/04 → … |
Keywords
- inertia friction welding
- Alloy 720Li
- gamma prime