Dynamic restoration of severely predeformed, ultrafine-grained pure Cu at 373 K observed in situ

Král P, Blum W, Dvorak J, Eisenlohr P, Petrenec M, Sklenička V (2017)

Publication Status: Published

Publication Type: Journal article

Publication year: 2017

Journal

Materials Characterization Elsevier

Publisher: ELSEVIER SCIENCE INC

Book Volume: 134

Pages Range: 329-334

DOI: 10.1016/j.matchar.2017.11.006

Abstract

Microstructure changes of ultrafine-grained pure copper prepared by equal-channel angular pressing were investigated during in situ tensile testing inside a scanning electron microscope at constant total strain rate of 10(-4) s(-1) at 373 K (similar to 0.28 T-m). After fast work hardening the flow stress saturated at an inelastic strain of 0.06. Significant local coarsening of grains was observed to start at about 2/3 of the maximum flow stress. However, these localized events did not significantly change the mean grain size up to an inelastic strain of 0.09. Surface observations showed that the coarsening was preferentially located at shear bands.

Authors with CRIS profile

Wolfgang Blum Technische Fakultät

Additional Organisation(s)

Lehrstuhl für Werkstoffwissenschaften (Allgemeine Werkstoffeigenschaften)

Involved external institutions

Academy of Sciences of the Czech Republic (ASCR) / Akademie věd České republiky (AVČR) CZ Czech Republic (CZ) Michigan State University US United States (USA) (US) Tescan Orsay Holding s.r.o. CZ Czech Republic (CZ)

How to cite

APA:

Král, P., Blum, W., Dvorak, J., Eisenlohr, P., Petrenec, M., & Sklenička, V. (2017). Dynamic restoration of severely predeformed, ultrafine-grained pure Cu at 373 K observed in situ. Materials Characterization, 134, 329-334. https://doi.org/10.1016/j.matchar.2017.11.006

MLA:

Král, Petr, et al. "Dynamic restoration of severely predeformed, ultrafine-grained pure Cu at 373 K observed in situ." Materials Characterization 134 (2017): 329-334.

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