Quasi-Stationary Strength of ECAP-Processed Cu-Zr at 0.5 T-m

Blum W, Dvorak J, Kral P, Eisenlohr P, Sklenicka V (2019)

Publication Type: Journal article

Publication year: 2019

Journal

Metals MDPI

Book Volume: 9

Journal Issue: 11

DOI: 10.3390/met9111149

Abstract

The influence of the grain structure on the tensile deformation strength is studied for precipitation-strengthened Cu-0.2%Zr at 673K. Subgrains and grains are formed by equal channel angular pressing (ECAP) and annealing. The fraction of high-angle boundaries increases with prestrain. Subgrains and grains coarsen during deformation. This leads to softening in the quasi-stationary state. The initial quasi-stationary state of severely predeformed, ultrafine-grained material exhibits relatively high rate-sensitivity at relatively high stresses. This is interpreted as a result of the stress dependences of the quasi-stationary subgrain size and the volume fraction of subgrain-free grains.

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)

How to cite

APA:

Blum, W., Dvorak, J., Kral, P., Eisenlohr, P., & Sklenicka, V. (2019). Quasi-Stationary Strength of ECAP-Processed Cu-Zr at 0.5 T-m. Metals, 9(11). https://doi.org/10.3390/met9111149

MLA:

Blum, Wolfgang, et al. "Quasi-Stationary Strength of ECAP-Processed Cu-Zr at 0.5 T-m." Metals 9.11 (2019).

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