Processing of copper by hydrostatic extrusion - studies of microstructure and properties
PBN-AR
Instytucja
Wydział Metali Nieżelaznych (Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie)
Informacje podstawowe
Główny język publikacji
EN
Czasopismo
ARCHIVES OF METALLURGY AND MATERIALS
ISSN
1733-3490
EISSN
Wydawca
POLISH ACAD SCIENCES COMMITTEE METALLURGY and INSTITUTE OF METALLURGY AND MATERIALS SCIENCE
DOI
Rok publikacji
2016
Numer zeszytu
3
Strony od-do
1229--1233
Numer tomu
61
Link do pełnego tekstu
Identyfikator DOI
Liczba arkuszy
0.35
Słowa kluczowe
EN
mechanical properties
ultra-fine grained copper
microstructure characterization
HE
Streszczenia
Język
EN
Treść
The present study attempts to apply HE to 99.99% pure copper. The microstructure of the samples was investigated by both light microscopy and scanning transmission electron microscopy (STEM). Additionally, the microhardness was measured, the tensile test was made, and statistical analysis of the grains and subgrains was performed. Based on Kikuchi diffraction patterns, misorientation was determined. The obtained results show that microstructure of copper deformed by hydrostatic extrusion (HE) is rather inhomogeneous. The regions strongly deformed with high dislocation density exist near cells and grains/subgrains free of dislocations. The measurements of the grain size have revealed that the sample with an initial in annealed-state grain size of about 250 μm had this grain size reduced to below 0.35μm when it was deformed by HE to the strain ε=2.91. The microhardness and UTS are stable within the whole investigated range of deformation.
Cechy publikacji
original article
peer-reviewed
Inne
System-identifier
idp:100938
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