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Simultaneous grain growth and grain refinement in bulk ultrafine-grained copper under tensile deformation at room temperature

Journal Article


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Abstract


  • Grain growth and grain refinement behavior during deformation determine the strength and ductility of ultrafine-grained materials. We used asymmetric cryorolling to fabricate ultrafine-grained copper sheets with an average grain width of 230 nm and having a laminate structure. The sheets show a high-true failure strain of 1.5. Observation of the microstructure at the fracture surface reveals that ultrafine laminate-structured grains were simultaneously transformed into both equiaxed nanograins and coarse grains under tensile deformation at room temperature.

Publication Date


  • 2016

Citation


  • Yu, H., Lu, C., Tieu, A. Kiet., Li, H., Godbole, A., Kong, C. & Zhao, X. (2016). Simultaneous grain growth and grain refinement in bulk ultrafine-grained copper under tensile deformation at room temperature. Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science, 47A 3785-3789.

Scopus Eid


  • 2-s2.0-84973091524

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=7097&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/6067

Has Global Citation Frequency


Number Of Pages


  • 4

Start Page


  • 3785

End Page


  • 3789

Volume


  • 47A

Place Of Publication


  • United States

Abstract


  • Grain growth and grain refinement behavior during deformation determine the strength and ductility of ultrafine-grained materials. We used asymmetric cryorolling to fabricate ultrafine-grained copper sheets with an average grain width of 230 nm and having a laminate structure. The sheets show a high-true failure strain of 1.5. Observation of the microstructure at the fracture surface reveals that ultrafine laminate-structured grains were simultaneously transformed into both equiaxed nanograins and coarse grains under tensile deformation at room temperature.

Publication Date


  • 2016

Citation


  • Yu, H., Lu, C., Tieu, A. Kiet., Li, H., Godbole, A., Kong, C. & Zhao, X. (2016). Simultaneous grain growth and grain refinement in bulk ultrafine-grained copper under tensile deformation at room temperature. Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science, 47A 3785-3789.

Scopus Eid


  • 2-s2.0-84973091524

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=7097&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/6067

Has Global Citation Frequency


Number Of Pages


  • 4

Start Page


  • 3785

End Page


  • 3789

Volume


  • 47A

Place Of Publication


  • United States