ZONE REFINING OF CEMENTED TUNGSTEN-BASE ALLOYS
Abstract
The resistance-heated zone-refining furnace was put into operation, and a 20-x 2-x 0.5-in piece of W was zone refined at 1900 C in vacuum. The initial experiments in making W sheet by the new process was successful. The initial steps of warm rolling of the liquid phase sintered alloys and zone refining conditions will govern the final properties of the hot-rolled sheet. Although the high-temperature tensile properties of the sheets made thus far are comparable to those of commercial sheets, the residual matrix content should be lowered to around 0.05% in order to obtain formable sheet. The gun life of the electron beam furnace was not affected by the zone refining of the sintered and warm-rolled bars. The sheets obtained were texture-free insofar as their mechanical properties were concerned. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 27, 1961
- Accession Number
- AD0265618
Entities
People
- N. M. Parikh
Organizations
- IIT Research Institute