In-Situ Neutron Diffraction Under Tensile Loading of Powder-in-Tube Cu/Nb$_{3}$Sn Composite Wires: Effect of Reaction Heat Treatment on Texture, Internal Stress State and Load Transfer

The strain induced degradation of Nb$_{3}$Sn superconductors can hamper the performance of high field magnets. We report elastic strain measurements in the different phases of entire non-heat treated and fully reacted Nb$_{3}$Sn composite strands as a function of uniaxial stress during in-situ defor...

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Detalles Bibliográficos
Autores principales: Scheuerlein, C, Stuhr, U, Thilly, L
Lenguaje:eng
Publicado: 2007
Materias:
Accelerators and Storage Rings
Acceso en línea:https://dx.doi.org/10.1063/1.2766685
http://cds.cern.ch/record/1048823
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author Scheuerlein, C
Stuhr, U
Thilly, L
author_facet Scheuerlein, C
Stuhr, U
Thilly, L
author_sort Scheuerlein, C
collection CERN
description The strain induced degradation of Nb$_{3}$Sn superconductors can hamper the performance of high field magnets. We report elastic strain measurements in the different phases of entire non-heat treated and fully reacted Nb$_{3}$Sn composite strands as a function of uniaxial stress during in-situ deformation under neutron beam. After the reaction heat treatment the Cu matrix loses entirely its load carrying capability and the applied stress is transferred to the remaining Nb-Ta alloy and to the brittle (Nb-Ta)3Sn phase, which exhibits a preferential <110> grain orientation parallel to the strand axis.
id cern-1048823
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2007
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spelling cern-10488232019-09-30T06:29:59Zdoi:10.1063/1.2766685http://cds.cern.ch/record/1048823engScheuerlein, CStuhr, UThilly, LIn-Situ Neutron Diffraction Under Tensile Loading of Powder-in-Tube Cu/Nb$_{3}$Sn Composite Wires: Effect of Reaction Heat Treatment on Texture, Internal Stress State and Load TransferAccelerators and Storage RingsThe strain induced degradation of Nb$_{3}$Sn superconductors can hamper the performance of high field magnets. We report elastic strain measurements in the different phases of entire non-heat treated and fully reacted Nb$_{3}$Sn composite strands as a function of uniaxial stress during in-situ deformation under neutron beam. After the reaction heat treatment the Cu matrix loses entirely its load carrying capability and the applied stress is transferred to the remaining Nb-Ta alloy and to the brittle (Nb-Ta)3Sn phase, which exhibits a preferential <110> grain orientation parallel to the strand axis.CERN-AT-2007-018-MCSoai:cds.cern.ch:10488232007-07-26
spellingShingle Accelerators and Storage Rings
Scheuerlein, C
Stuhr, U
Thilly, L
In-Situ Neutron Diffraction Under Tensile Loading of Powder-in-Tube Cu/Nb$_{3}$Sn Composite Wires: Effect of Reaction Heat Treatment on Texture, Internal Stress State and Load Transfer
title In-Situ Neutron Diffraction Under Tensile Loading of Powder-in-Tube Cu/Nb$_{3}$Sn Composite Wires: Effect of Reaction Heat Treatment on Texture, Internal Stress State and Load Transfer
title_full In-Situ Neutron Diffraction Under Tensile Loading of Powder-in-Tube Cu/Nb$_{3}$Sn Composite Wires: Effect of Reaction Heat Treatment on Texture, Internal Stress State and Load Transfer
title_fullStr In-Situ Neutron Diffraction Under Tensile Loading of Powder-in-Tube Cu/Nb$_{3}$Sn Composite Wires: Effect of Reaction Heat Treatment on Texture, Internal Stress State and Load Transfer
title_full_unstemmed In-Situ Neutron Diffraction Under Tensile Loading of Powder-in-Tube Cu/Nb$_{3}$Sn Composite Wires: Effect of Reaction Heat Treatment on Texture, Internal Stress State and Load Transfer
title_short In-Situ Neutron Diffraction Under Tensile Loading of Powder-in-Tube Cu/Nb$_{3}$Sn Composite Wires: Effect of Reaction Heat Treatment on Texture, Internal Stress State and Load Transfer
title_sort in-situ neutron diffraction under tensile loading of powder-in-tube cu/nb$_{3}$sn composite wires: effect of reaction heat treatment on texture, internal stress state and load transfer
topic Accelerators and Storage Rings
url https://dx.doi.org/10.1063/1.2766685
http://cds.cern.ch/record/1048823
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AT stuhru insituneutrondiffractionundertensileloadingofpowderintubecunb3sncompositewireseffectofreactionheattreatmentontextureinternalstressstateandloadtransfer
AT thillyl insituneutrondiffractionundertensileloadingofpowderintubecunb3sncompositewireseffectofreactionheattreatmentontextureinternalstressstateandloadtransfer

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