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Grain size, stress and creep in polycrystalline solids

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dc.contributor.author Nabarro, FRN en_US
dc.date.accessioned 2007-02-08T09:28:49Z en_US
dc.date.accessioned 2007-06-07T10:07:29Z
dc.date.available 2007-02-08T09:28:49Z en_US
dc.date.available 2007-06-07T10:07:29Z
dc.date.issued 2000-08 en_US
dc.identifier.citation Nabarro, FRN. 2000. Grain size, stress and creep in polycrystalline solids. Physics of the solid state, vol 42 (8), pp 1456-1459 en_US
dc.identifier.issn 1063-7834 en_US
dc.identifier.uri http://hdl.handle.net/10204/1672 en_US
dc.identifier.uri http://hdl.handle.net/10204/1672
dc.description.abstract If a stress sigma is applied to a polycrystal of grain size L, the mode of creep deformation depends on the answers to the following questions: (i) Does sigma exceed the Peierls stress sigma (p); (ii) Does L exceed the dislocation spacing in a Taylor lattice stabilized by sigma (p); (iii) Does Lo exceed the value required for a Frank-Read or Bardeen-Herring source to operate within the grain? (iv) Does L (1/2) sigma exceed the Hall-Petch value required for slip to propagate across a grain boundary? The (L, sigma) plane is thus partitioned into regions in which different creep modes predominate. en_US
dc.format.extent 58761 bytes en_US
dc.format.mimetype application/pdf en_US
dc.language.iso en en_US
dc.publisher AMER INST physics en_US
dc.rights copyright: 2000 AMER INST physics en_US
dc.subject Peierls stresses en_US
dc.subject Sigma stresses en_US
dc.subject Polycrystalline solids en_US
dc.subject Grain size en_US
dc.title Grain size, stress and creep in polycrystalline solids en_US
dc.type Article en_US
dc.identifier.apacitation Nabarro, F. (2000). Grain size, stress and creep in polycrystalline solids. http://hdl.handle.net/10204/1672 en_ZA
dc.identifier.chicagocitation Nabarro, FRN "Grain size, stress and creep in polycrystalline solids." (2000) http://hdl.handle.net/10204/1672 en_ZA
dc.identifier.vancouvercitation Nabarro F. Grain size, stress and creep in polycrystalline solids. 2000; http://hdl.handle.net/10204/1672. en_ZA
dc.identifier.ris TY - Article AU - Nabarro, FRN AB - If a stress sigma is applied to a polycrystal of grain size L, the mode of creep deformation depends on the answers to the following questions: (i) Does sigma exceed the Peierls stress sigma (p); (ii) Does L exceed the dislocation spacing in a Taylor lattice stabilized by sigma (p); (iii) Does Lo exceed the value required for a Frank-Read or Bardeen-Herring source to operate within the grain? (iv) Does L (1/2) sigma exceed the Hall-Petch value required for slip to propagate across a grain boundary? The (L, sigma) plane is thus partitioned into regions in which different creep modes predominate. DA - 2000-08 DB - ResearchSpace DP - CSIR KW - Peierls stresses KW - Sigma stresses KW - Polycrystalline solids KW - Grain size LK - https://researchspace.csir.co.za PY - 2000 SM - 1063-7834 T1 - Grain size, stress and creep in polycrystalline solids TI - Grain size, stress and creep in polycrystalline solids UR - http://hdl.handle.net/10204/1672 ER - en_ZA


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