NDLI: Structure and properties of differently directed deformed niobium-titanium alloy

Content Provider	IEEE Xplore Digital Library
Author	Chernyi, O.V. Storozhilov, G.E. Andrievskaya, N.F. Ilichova, V.O. Starodubov, Y.D. Volchok, O.I. Chirkina, L.A. Lazareva, M.B. Okovit, V.S.
Copyright Year	2002
Abstract	Cylindrical blanks of Nb-48.5 wt.%Ti alloy were prepared with a variable degree of plastic strain at different temperatures of the treatment by using the thermomechanical treatment consisting of deformation of the ingot via upsetting in a closed container and its subsequent extrusion from this container to the initial size. The true strain value over one cycle of such a treatment is approximately 1.6, with the number of cycles varying from 1 to 5. Measurements were taken of strength, plastic and elastic characteristics of the differently directed deformed alloy over different stages of superconductor fabrication. TEM was used to study the microstructure of the alloy in the course of plastic deformation. It is established that such combined treatment promotes formation of a better homogeneous dispersed structure. With that the current characteristics of the niobium-titanium superconductor increase. The highest critical current density after such a treatment was 4.1 k/mm/sup 2/ under the applied magnetic field 5 T at 4.2 K.
Sponsorship	Council on Superconductivity Appl. Superconductivity Conference Inc MIT
Starting Page	3502
Ending Page	3505
Page Count	4
File Size	422804
File Format	PDF
ISSN	10518223
Volume Number	15
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-06-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Niobium compounds Titanium compounds Niobium alloys Plastics Capacitive sensors Containers Temperature Thermomechanical processes Superconducting materials Fabrication upset forging Critical current density cryogenic treatment extrusion mechanical properties microstructure NbTi superconductor
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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