TY - GEN
T1 - Annealing behavior of FeNi alloy processed by high-pressure torsion
AU - Lee, Seungwon
AU - Horita, Zenji
PY - 2011
Y1 - 2011
N2 - An Fe-50at %Ni alloy was processed by high-pressure torsion (HPT) and annealed at lower homologous temperatures. Vickers microhardness and microstructural evolutions were examined with respect to the annealing time. Disks with 10 mm diameters having 0.85 mm thicknesses were subjected to HPT under a pressure of 6 GPa for 1-10 revolutions at a rotation speed of 1 rpm. The annealing after the HPT processing was conducted at homologous temperatures of ∼0.3 for up to 40 days. The hardness increases with straining and saturates to a constant level of ∼400 Hv at large equivalent strain. Microstructure analysis using XRD revealed that there was a peak corresponding to an α (Fe, Ni) phase.
AB - An Fe-50at %Ni alloy was processed by high-pressure torsion (HPT) and annealed at lower homologous temperatures. Vickers microhardness and microstructural evolutions were examined with respect to the annealing time. Disks with 10 mm diameters having 0.85 mm thicknesses were subjected to HPT under a pressure of 6 GPa for 1-10 revolutions at a rotation speed of 1 rpm. The annealing after the HPT processing was conducted at homologous temperatures of ∼0.3 for up to 40 days. The hardness increases with straining and saturates to a constant level of ∼400 Hv at large equivalent strain. Microstructure analysis using XRD revealed that there was a peak corresponding to an α (Fe, Ni) phase.
UR - http://www.scopus.com/inward/record.url?scp=79951825095&partnerID=8YFLogxK
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U2 - 10.4028/www.scientific.net/MSF.667-669.313
DO - 10.4028/www.scientific.net/MSF.667-669.313
M3 - Conference contribution
AN - SCOPUS:79951825095
SN - 9783037850077
T3 - Materials Science Forum
SP - 313
EP - 318
BT - Nanomaterials by Severe Plastic Deformation, NanoSPD5
PB - Trans Tech Publications Ltd
ER -