Alpha-titanium precipitation in niobium-titanium alloys

Conference · Fri Jan 01 04:00:00 EST 1982 · Adv. Cryog. Eng.; (United States)

OSTI ID:6210009

West, A W; Larbalestier, D C

A variety of electron microscopy technqiues are used to determine the distribution and morphology of alpha-Ti precipitates in various Nb-Ti samples. CTEM investigations of both rod and strip samples of Nb-Ti alloys and STEM and EDAX investigations of multifilamentary Nb-Ti composites are conducted. It is found that the morphology and distribution of the alpha-Ti phase which precipitates in Nb-Ti alloys is very dependent on the microstructure of the matrix; that the alpha-Ti which precipitates in a heavily cold-worked structure, unlike the plate-like alpha-Ti precipitates which nucleate in annealed alloys, takes the form of equiaxed particles which have no orientation relationship with the matrix; and that in the Nb-Ti filaments in composite wires, the alpha-Ti grows in the form of equiaxed precipitates which deform with the matrix on subsequent drawing.

• Research Organization: University of Wisconsin, Madison, WI
• OSTI ID: 6210009
• Report Number(s): CONF-810835-
• Conference Information: Journal Name: Adv. Cryog. Eng.; (United States) Journal Volume: 28
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360102* -- Metals & Alloys-- Structure & Phase Studies
ALLOYS
COMPOSITE MATERIALS
CRYOGENICS
CRYSTAL STRUCTURE
ELECTRON MICROSCOPY
ELEMENTS
LOW TEMPERATURE
MATERIALS
METALS
MICROSCOPY
MICROSTRUCTURE
NIOBIUM ALLOYS
PRECIPITATION
SEPARATION PROCESSES
SUPERCONDUCTING COMPOSITES
SUPERCONDUCTING WIRES
SUPERCONDUCTORS
TITANIUM
TITANIUM ALLOYS
TITANIUM-ALPHA
TRANSITION ELEMENTS
WIRES