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Microstructures and mechanical properties of ultrafine-grained Ti foil processed by equal-channel angular pressing and cold rolling

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Abstract

We processed coarse-grained Ti and equal-channel angular pressing (ECAP) processed ultrafine-grained (UFG) Ti into 20-μm-thick Ti foils by cold rolling and intermediate annealing. The foils produced from rolling the UFG Ti exhibit a homogeneous nanostructure, while foils produced from rolling the coarse-grained Ti exhibit heterogeneous structures with a mixture of nanostructured regions and coarse-grained regions. The former foils also have higher strength and ductility and exhibit uniform deformation over a larger strain range at room temperature than the latter ones. This work demonstrated the advantage and viability of producing nanostructured Ti foil by rolling ECAP-processed UFG Ti stock.

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Authors and Affiliations

  1. Materials Science and Technology Division, Los Alamos National Laboratory, Los Alamos, New Mexico, 87545, USA

    Y. T. Zhu & R. Z. Valiev

  2. Siberian Branch of Russian Academy of Sciences, Institute of Strength Physics and Materials Science, 2/1, Akademicheskaya, Tomsk, 634021, Russia

    Y. R. Kolobov, G. P. Grabovetskaya & N. V. Girsova

  3. Institute of Physics of Advanced Materials, Ufa State Aviation Technical University, Ufa, 450000, Russia

    V. V. Stolyarov

Authors
  1. Y. T. Zhu
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  2. Y. R. Kolobov
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  3. G. P. Grabovetskaya
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  4. V. V. Stolyarov
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  5. N. V. Girsova
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  6. R. Z. Valiev
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Zhu, Y.T., Kolobov, Y.R., Grabovetskaya, G.P. et al. Microstructures and mechanical properties of ultrafine-grained Ti foil processed by equal-channel angular pressing and cold rolling. Journal of Materials Research 18, 1011–1016 (2003). https://doi.org/10.1557/JMR.2003.0138

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  • DOI: https://doi.org/10.1557/JMR.2003.0138

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