Casting of high-quality uranium-3/4 weight percent titanium alloy ingots for extrusion

Technical Report · Mon Mar 14 04:00:00 EST 1988

OSTI ID:7006600

Jackson, R J; Thomas, R L ^[1]

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1. ed.

The vacuum-induction melting, alloying, and casting of U--3/4 wt. % alloys ingots for extrusion is discussed. A procedure that allows casting of sound ingots of widely different geometries is presented. The cast ingots were free from cold shuts, surface and internal gas porosity, interdendritic porosity, and centerline defects. Even though all ingots were sound, three of the six ingot geometries exhibited titanium macrosegregation tendency. The macrosegregation of the three geometries was related to an improper solidification pattern and slow cooling rate. Three of the geometries had excellent titanium homogeneity, and these geometries are presently used to cast sound and homogeneous U--3/4 wt. % Ti ingots for extrusion into rod, bar, and tube. 5 refs., 15 figs., 3 tabs.

• Research Organization: Rockwell International Corp., Golden, CO (USA). Rocky Flats Plant
• DOE Contract Number: AC04-76DP03533
• OSTI ID: 7006600
• Report Number(s): RFP-4173; ON: DE88013614
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360101* -- Metals & Alloys-- Preparation & Fabrication
ACTINIDE ALLOYS
ALLOYS
CASTING
CHEMICAL COMPOSITION
COATINGS
CONTROL
DESIGN
DIAGRAMS
EXTRUSION
FABRICATION
FURNACES
MATERIALS WORKING
PHASE DIAGRAMS
PHASE TRANSFORMATIONS
SEGREGATION
SOLIDIFICATION
TITANIUM ALLOYS
URANIUM ALLOYS