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http://localhost:8080/xmlui/handle/123456789/2003| Title: | Observations on welding of α2+O+β titanium aluminide |
| Authors: | Madhusudhan Reddy, G. Mohandas, T. Chandreshekar, K. |
| Keywords: | welding a2zOzb titanium aluminide |
| Issue Date: | 2001 |
| Publisher: | Science and Technology of Welding and Joining |
| Abstract: | The weldability characteristics of an a2zOzb titanium aluminide of nominal composition Ti – 24Al – 15.5Nb (at.-%) have been investigated. Conventional gas tungsten arc (GTA) and electron beam (EB) welds exhibited columnar fusion zone grains. Pulsed current and arc oscillated GTA welds exhibited predominantly equiaxed fusion zone grains. The microstructure of GTA welds and pulsed current GTA welds exhibited a2zO phases, whereas arc oscillated GTA welds and EB welds contained a2zOzb0/b2; however, b0/b2 is predominant in EB welds. The EB welds, which contained a2zb0/b2 microstructure, exhibited high strength and ductility compared with GTA welds. The observed microstructural variations are explained on the basis of possible weld thermal cycles and convective currents in the weld pool |
| Description: | NITW |
| URI: | http://localhost:8080/xmlui/handle/123456789/2003 |
| Appears in Collections: | Metallurgical and Materials Engineering |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| madhusudhan-reddy-et-al-2001-observations-on-welding-of-a2-o-b-titanium-aluminide.pdf | 539.6 kB | Adobe PDF | View/Open |
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