Microstructure and texture evolution during severe plastic deformation of CrMnFeCoNi high-entropy alloy
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in: IOP Conference Series: Materials Science and Engineering, Jahrgang 2017, Nr. 194, 012028, 08.05.2017.
Publikationen: Beitrag in Fachzeitschrift › Artikel › Forschung › (peer-reviewed)
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TY - JOUR
T1 - Microstructure and texture evolution during severe plastic deformation of CrMnFeCoNi high-entropy alloy
AU - Skrotzki, Werner
AU - Pukenas, A.
AU - Joni, B.
AU - Odor, E.
AU - Ungar, T.
AU - Hohenwarter, Anton
AU - Pippan, Reinhard
AU - George, Easo P.
PY - 2017/5/8
Y1 - 2017/5/8
N2 - An equiatomic high-entropy alloy CrMnFeCoNi was severely deformed at room temperature by high pressure torsion up to shear strains of about 170. Its microstructure and texture were analyzed by X-ray diffraction (X-ray line profile analysis and X-ray microdiffraction, respectively). It is shown that at a shear strain of about 20 a steady state domain/grain size of 24 nm and a dislocation density of 3 × 1016 m−2 is reached, while the twin density goes over a maximum of 2% at this strain. The texture developed is typical for sheared face-centred cubic metals, but it is extremely weak. The results are discussed in terms of the mechanisms of deformation, including dislocation slip, twinning and grain boundary sliding.
AB - An equiatomic high-entropy alloy CrMnFeCoNi was severely deformed at room temperature by high pressure torsion up to shear strains of about 170. Its microstructure and texture were analyzed by X-ray diffraction (X-ray line profile analysis and X-ray microdiffraction, respectively). It is shown that at a shear strain of about 20 a steady state domain/grain size of 24 nm and a dislocation density of 3 × 1016 m−2 is reached, while the twin density goes over a maximum of 2% at this strain. The texture developed is typical for sheared face-centred cubic metals, but it is extremely weak. The results are discussed in terms of the mechanisms of deformation, including dislocation slip, twinning and grain boundary sliding.
UR - http://www.scopus.com/inward/record.url?scp=85019729627&partnerID=8YFLogxK
U2 - 10.1088/1757-899X/194/1/012028
DO - 10.1088/1757-899X/194/1/012028
M3 - Article
AN - SCOPUS:85019729627
VL - 2017
JO - IOP Conference Series: Materials Science and Engineering
JF - IOP Conference Series: Materials Science and Engineering
SN - 1757-8981
IS - 194
M1 - 012028
ER -
