Research output: Contribution to journal › Article › peer-review
Microstructure and mechanical characteristics of nanostructured nickel-graphene composites processed by high pressure torsion. / Archakov, I. Yu; Kazykhanov, V. U.; Konakov, V. G.; Kurapova, O. Yu; Medvedev, A. E.; Murashkin, M. Yu; Novik, N. N.; Ovid'Ko, I. A.; Solovyeva, E. N.; Valiev, R. Z.
In: Reviews on Advanced Materials Science, Vol. 50, No. 1-2, 01.01.2017, p. 13-23.Research output: Contribution to journal › Article › peer-review
}
TY - JOUR
T1 - Microstructure and mechanical characteristics of nanostructured nickel-graphene composites processed by high pressure torsion
AU - Archakov, I. Yu
AU - Kazykhanov, V. U.
AU - Konakov, V. G.
AU - Kurapova, O. Yu
AU - Medvedev, A. E.
AU - Murashkin, M. Yu
AU - Novik, N. N.
AU - Ovid'Ko, I. A.
AU - Solovyeva, E. N.
AU - Valiev, R. Z.
PY - 2017/1/1
Y1 - 2017/1/1
N2 - This paper presents data on fabrication of "nickel-graphene-graphite" bulk composites using powder metallurgy methods combined with the high energy ball milling. The composites were then processed by high pressure torsion (HPT) at temperatures of 23 and 200°C. This treatment gives rise to the formation of new "nanostructured nickel-graphene" composites. The phase composition of the new composite specimens was examined by X-ray diffraction. Raman spectroscopy proved graphite-to-graphene conversion under mechanical treatments. The microstructure of the new composite specimens was investigated by scanning electron and transmission electron microscopy methods. Composite specimens after HPT at temperature of 200°C demonstrate the optimal combination of strength (σ02= 923 MPa; σb= 992 MPa) and ductility (δ = 99%). Composite specimens with 2 wt.% graphene content after HPT at room temperature exhibits superior microhardness Hv = 6.45 GPa.
AB - This paper presents data on fabrication of "nickel-graphene-graphite" bulk composites using powder metallurgy methods combined with the high energy ball milling. The composites were then processed by high pressure torsion (HPT) at temperatures of 23 and 200°C. This treatment gives rise to the formation of new "nanostructured nickel-graphene" composites. The phase composition of the new composite specimens was examined by X-ray diffraction. Raman spectroscopy proved graphite-to-graphene conversion under mechanical treatments. The microstructure of the new composite specimens was investigated by scanning electron and transmission electron microscopy methods. Composite specimens after HPT at temperature of 200°C demonstrate the optimal combination of strength (σ02= 923 MPa; σb= 992 MPa) and ductility (δ = 99%). Composite specimens with 2 wt.% graphene content after HPT at room temperature exhibits superior microhardness Hv = 6.45 GPa.
UR - http://www.scopus.com/inward/record.url?scp=85028412083&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:85028412083
VL - 50
SP - 13
EP - 23
JO - Reviews on Advanced Materials Science
JF - Reviews on Advanced Materials Science
SN - 1606-5131
IS - 1-2
ER -
ID: 35172601