Abstract
The application of severe plastic deformation (SPD) to bulk metals provides the opportunity of achieving grain sizes in the submicrometer and nanometer range. Several different SPD processing techniques are now available including Equal-Channel Angular Pressing (ECAP), High-Pressure Torsion (HPT) and Accumulative Roll-Bonding (ARB). This paper examines the principles of grain refinement using ECAP and gives examples of the advantageous properties that may be achieved including increased strength at ambient temperatures and a superplastic forming capability at elevated temperatures.
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Acknowledgements
Presentation of this paper at the 5th Brazilian Materials Research Society Meeting in Florianópolis in October 2006 was made possible through support from SBPMat (Sociedade Brasileira de Pesquisa em Materiais). I am grateful to Prof. Levi Bueno (Universidade Federal de São Carlos) for making all travel arrangements within Brazil. This work was supported by the National Science Foundation of the United States under Grant No. DMR-0243331 and the U.S. Army Research Office under Grant No. W911NF-05-1-0046.
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Invited paper presented in Symposium C at 5th Brazilian MRS Meeting, Florianópolis, Brazil.
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Langdon, T.G. The processing of ultrafine-grained materials through the application of severe plastic deformation. J Mater Sci 42, 3388–3397 (2007). https://doi.org/10.1007/s10853-006-1475-8
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DOI: https://doi.org/10.1007/s10853-006-1475-8