Bulk Nanostructured Refractory Metals with Enhanced Mechanical Properties Produced by Equal Channel Angular Pressing
Final technical rept. 11 Jun-10 Nov 2003
UFA STATE AVIATION TECHNICAL UNIV (RUSSIA) INST OF PHYSICS OF ADVANCED MATERIALS
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The main aim of the current project has been to produce a batch of bulk billets with ultrafine-grained UFG microstructure and enhanced strength made of two refractory metals such as tungsten and tantalum. To process bulk W billets with UFG structure having a long-length size more than 100 mm we have developed and successfully used a new approach based on a combination of equal angular pressing ECAP and further extrusion. In frames of this project we could also fabricate UFG Ta with strength increased more than 3 times.
- Electrical and Electronic Equipment
- Metallurgy and Metallography