Mechanical properties of tungsten copper composites: direct measurement by neutron diffraction

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dc.contributor.authorMignone, PJen_AU
dc.contributor.authorFinlayson, TRen_AU
dc.contributor.authorKabra, Sen_AU
dc.contributor.authorZhang, SYen_AU
dc.contributor.authorFranks, GVen_AU
dc.contributor.authorRiley, DPen_AU
dc.date.accessioned2022-08-25T01:46:29Zen_AU
dc.date.available2022-08-25T01:46:29Zen_AU
dc.date.issued2014-02-04en_AU
dc.date.statistics2021-09-14en_AU
dc.description.abstractThe composite W-10 wt%Cu (19.35% by volume, assuming negligible porosity) has been studied using the ENGIN-X beamline at the ISIS pulsed neutron source at the Rutherford Appleton Laboratory. An as-machined, compression sample was initially measured in order to check for the presence of residual stresses in the composite, using a mixed powder sample of the same elemental weight fractions as the “zero stress” comparison. Then a series of mechanical tests were carried out on the composite for applied compressive loads up to 250 MPa at both room temperature and 100ºC and compared with similar tests carried out on pure tungsten and copper samples. Residual stress values of -280 MPa (for the tungsten matrix) and 480 MPa (for the copper particulate phase) were measured for the as-machined sample. This is a surprising result, given that the yield stress for copper is typically less than 100 MPa but is not inconsistent with residual stresses reported in the literature for W-Cu composites. The mechanical properties for the composite have also been determined from the results of these in-situ, mechanical tests and compared with finite element calculations based on microstructural models for the composite material.en_AU
dc.identifier.citationMignone, P. J., Finlayson, T. R., Kabra, S., Zhang, S.-Y., Franks, G. V., & Riley, D. P. (2014). Mechanical properties of tungsten copper composites: direct measurement by neutron diffraction. Poster presented to the 38th Annual Condensed Matter and Materials Meeting 2014, Waiheke Island Resort, Waiheke, Auckland, New Zealand 4th February - 7th February, 2014. Retrieved from: https://physics.org.au/wp-content/uploads/cmm/2014/Wagga2014proceedings.pdfen_AU
dc.identifier.conferenceenddate7 February 2014en_AU
dc.identifier.conferencename38th Annual Condensed Matter and Materials Meeting 2014en_AU
dc.identifier.conferenceplaceAuckland, New Zealanden_AU
dc.identifier.conferencestartdate4 February 2014en_AU
dc.identifier.isbn978-0-646-93339-9en_AU
dc.identifier.urihttps://physics.org.au/wp-content/uploads/cmm/2014/Wagga2014proceedings.pdfen_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/13605en_AU
dc.language.isoenen_AU
dc.publisherAustralian Institute of Physicsen_AU
dc.subjectCoherent scatteringen_AU
dc.subjectDiffractionen_AU
dc.subjectElementsen_AU
dc.subjectEvaluationen_AU
dc.subjectMaterialsen_AU
dc.subjectMechanical propertiesen_AU
dc.subjectMetalsen_AU
dc.subjectRefractory metalsen_AU
dc.subjectScatteringen_AU
dc.subjectStressesen_AU
dc.subjectTransition elementsen_AU
dc.titleMechanical properties of tungsten copper composites: direct measurement by neutron diffractionen_AU
dc.typeConference Posteren_AU
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