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2015 | 128 | 4 | 689-692
Article title

Post SPD Material's Recovery in Thermal Exposition

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Abstracts
EN
The mechanical and thermo-physical properties of Cu-Cr-Zr alloys in dependence on processing conditions were studied. The processing conditions consisted of solution annealing at temperature of 1020°C for 60 min followed by water quenching. This was followed by one equal channel angular pressing pass carried out at ambient temperature, ageing treatment (T_{AT}∈ (20;480⟩°C, t_{AT}∈ ⟨30;150⟩ min) and cooling in water. The maximal strengthening effect coming from dislocations & grain size refinement & precipitation strengthening of ΔHV0.1=130 was achieved at T_{AT}=480°C and for t_{AT}=120 min. From differential scanning calorimetry analysis, two partial exothermal peaks were recognized and classified as major and minor, these peaks are used to determination the stored energy coming from recrystallization and precipitation (ΔH_R and ΔH_P). The maximal value in stored energy of H_{1×ECAP}=2.923 J/g was obtained after 1st ECAP pass.
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Contributors
author
  • Technical University of Košice, Faculty of Metallurgy, Department of Metal Forming, Letná 9, 042 00 Košice, Slovakia
  • Technical University of Košice, Faculty of Metallurgy, Department of Metal Forming, Letná 9, 042 00 Košice, Slovakia
author
  • Technical University of Košice, Faculty of Metallurgy, Department of Metal Forming, Letná 9, 042 00 Košice, Slovakia
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Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv128n453kz
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