COLUMBIUM ' 'H' ' SECTION PROGRAM. PHASE I - EXTRUSION. PHASE II - DRAWING.
Abstract
The development of the extrusion process for D-43 (Nb 10W-1Zr-0.1C) and Cb-752 (Nb-10W-2.5Zr) ''H'' sections continued. Efforts were concentrated on reduction of contamination and improvement of surface finish and dimensional control of extruded sections. Group II ''H'' extrusions (0.125 to 0.060 in. section thickness) showed reduced contamination and improved straightness, but surfaces and uniformity of section thickness were unsatisfactory. Group I extrusions were drawn from section thickness of 0.188 in. at room temperature with reductions of 5% to 18% per pass. Total reductions up to 28% were made on short lengths without intermediate annealing. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1964
- Accession Number
- AD0429144
Entities
People
- E. V. Peterson