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1966•Nuclear ApplicationsRequires access

Fabrication of Tungsten and Tungsten-25%-Rhenium Tubing

Saul Isserow, Robert G. Jenkins, James G. Hunt, Gerald I. Friedman

Open publisher page 2 citations

Abstract

Techniques were developed for the fabrication of seamless tungsten and tungsten-25%rhenium tubing. Appropriate procedures were established for primary extrusion, re-extrusion, and warm drawing. The extrusion uses the filled-billet technique, with molybdenum serving as the expendable filler which is subsequently removed chemically. Tubing diameters studied were from ≍½ in. to < 0.1 in., wall thicknesses being ≍0.1 times the diameter. A lot of 64 ft of W-25% Re tubing, 0.250-in. o.d. × 0.020-in. wall, was produced by primary extrusion and a series of moving-mandrel draws.

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What this paper is about

Techniques were developed for the fabrication of seamless tungsten and tungsten-25%rhenium tubing. Appropriate procedures were established for primary extrusion, re-extrusion, and warm drawing. The extrusion uses the filled-billet technique, with molybdenum serving as the expendable filler which is subsequently removed chemically. Tubing diameters studied were from ≍½ in. to < 0.1 in., wall thicknesses being ≍0.1 times the diameter. A lot of 64 ft of W-25% Re tubing, 0.250-in. o.d. × 0.020-in. wall, was produced by primary extrusion and a series of moving-mandrel draws.

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Available abstract

Techniques were developed for the fabrication of seamless tungsten and tungsten-25%rhenium tubing. Appropriate procedures were established for primary extrusion, re-extrusion, and warm drawing. The extrusion uses the filled-billet technique, with molybdenum serving as the expendable filler which is subsequently removed chemically. Tubing diameters studied were from ≍½ in. to < 0.1 in., wall thicknesses being ≍0.1 times the diameter. A lot of 64 ft of W-25% Re tubing, 0.250-in. o.d. × 0.020-in. wall, was produced by primary extrusion and a series of moving-mandrel draws.

Key concepts: Tungsten, Fabrication, Rhenium, Materials science, Metallurgy, Nuclear engineering, Forensic engineering, Engineering

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