The effect of neutron spectrum on the mechanical and physical properties of pure copper and copper alloys

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Description

The electrical resistivity and tensile properties of copper and oxide dispersion strengthened (DS) copper alloys have been measured before and after fission neutron irradiation to damage levels of 0.5 to 5 displacements per atom (dps) at {approximately}100 to 400{degrees}C. Some of the specimens were irradiated inside a 1.5 mm Cd shroud in order to reduce the thermal neutron flux. The electrical resistivity data could be separated into two components, a solid transmutation component {Delta}{rho}{sub tr} which was proportional to thermal neutron fluence and a radiation defect component {Delta}{rho}{sub rd} which was independent of the displacement dose. The saturation value for ... continued below

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20 p.

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Fabritsiev, S.A.; Pokrovsky, A.S.; Sandakov, V.A.; Zinkle, S.J.; Rowcliffe, A.F.; Edwards, D.J. et al. April 1, 1996.

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Description

The electrical resistivity and tensile properties of copper and oxide dispersion strengthened (DS) copper alloys have been measured before and after fission neutron irradiation to damage levels of 0.5 to 5 displacements per atom (dps) at {approximately}100 to 400{degrees}C. Some of the specimens were irradiated inside a 1.5 mm Cd shroud in order to reduce the thermal neutron flux. The electrical resistivity data could be separated into two components, a solid transmutation component {Delta}{rho}{sub tr} which was proportional to thermal neutron fluence and a radiation defect component {Delta}{rho}{sub rd} which was independent of the displacement dose. The saturation value for {Delta}{rho}{sub rd} was {approximately}1.2 nanohm-meters for pure copper and {approximately}1.6 nanohm-meters for the DS copper alloys irradiated at 100{degrees}C in positions with a fast-to-thermal neutron flux ratio of 5. Considerable radiation hardening was observed in all specimens at irradiation temperatures below 200{degrees}C. The yield strength was relatively insensitive to neutron spectrum in specimens strengthened by dispersoids or cold- working. 17 refs., 7 figs., 1 tab.

Physical Description

20 p.

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INIS; OSTI as DE96008660

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  • ICFRM-7: international conference on fusion reactor materials, Obninsk (Russian Federation), 25-29 Sep 1995

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  • Other: DE96008660
  • Report No.: CONF-950961--16
  • Grant Number: AC05-96OR22464;AC06-76RL01830
  • DOI: 10.2172/219451 | External Link
  • Office of Scientific & Technical Information Report Number: 219451
  • Archival Resource Key: ark:/67531/metadc670984

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  • April 1, 1996

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  • June 29, 2015, 9:42 p.m.

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  • Jan. 19, 2016, 12:58 p.m.

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Fabritsiev, S.A.; Pokrovsky, A.S.; Sandakov, V.A.; Zinkle, S.J.; Rowcliffe, A.F.; Edwards, D.J. et al. The effect of neutron spectrum on the mechanical and physical properties of pure copper and copper alloys, report, April 1, 1996; Tennessee. (digital.library.unt.edu/ark:/67531/metadc670984/: accessed August 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.