Результаты исследований: Публикации в книгах, отчётах, сборниках, трудах конференций › статья в сборнике материалов конференции › научная › Рецензирование
Atomic force microscopy studies of severely deformed amorphous TiNiCu alloy. / Gunderov, Dmitry; Boltynjuk, Evgeniy; Ubyivovk, Evgeniy; Lukyanov, Alexander; Churakova, Anna; Zamula, Yuri; Batyrshin, Eduard; Kilmametov, Askar; Valiev, Ruslan.
Atomic force microscopy studies of severely deformed amorphous TiNiCu alloy. Том 385 DDF Defect and Diffusion Forum : Trans Tech Publications Ltd, 2018. стр. 200-205.Результаты исследований: Публикации в книгах, отчётах, сборниках, трудах конференций › статья в сборнике материалов конференции › научная › Рецензирование
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TY - GEN
T1 - Atomic force microscopy studies of severely deformed amorphous TiNiCu alloy
AU - Gunderov, Dmitry
AU - Boltynjuk, Evgeniy
AU - Ubyivovk, Evgeniy
AU - Lukyanov, Alexander
AU - Churakova, Anna
AU - Zamula, Yuri
AU - Batyrshin, Eduard
AU - Kilmametov, Askar
AU - Valiev, Ruslan
N1 - Категории Scopus: Condensed Matter Physics, Materials Science (miscellaneous), Radiation
PY - 2018/7/26
Y1 - 2018/7/26
N2 - The amorphous Ti50Ni25Cu25 alloy was subjected to high pressure torsion (HPT) processing. TEM studies revealed in the structure of the HPT-processed samples the presence of nanocrystals with a size of about 5 nm and amorphous clusters with a size of about 10-30 nm. Atomic force microscopy (AFM) was used to study the surface morphology of foils prepared by ion polishing from the initial amorphous ribbons and HPT-processed samples. AFM images of the foil prepared from the initial ribbon revealed a smooth surface with an average roughness of 0.3 nm. A totally different surface morphology was observed for the foil prepared from the HPT-processed state by the same regime of ion polishing: the presence of holes with a depth of 2-4 nm and a width of 10-30 nm. The changes in the surface morphology, namely the holes-like surface morphology of the HPT-processed state, could be explained by a complex transformation of the amorphous structure, and probably by the variation and redistribution of free volume, which leads to the emergence of a cluster contrast in TEM images.
AB - The amorphous Ti50Ni25Cu25 alloy was subjected to high pressure torsion (HPT) processing. TEM studies revealed in the structure of the HPT-processed samples the presence of nanocrystals with a size of about 5 nm and amorphous clusters with a size of about 10-30 nm. Atomic force microscopy (AFM) was used to study the surface morphology of foils prepared by ion polishing from the initial amorphous ribbons and HPT-processed samples. AFM images of the foil prepared from the initial ribbon revealed a smooth surface with an average roughness of 0.3 nm. A totally different surface morphology was observed for the foil prepared from the HPT-processed state by the same regime of ion polishing: the presence of holes with a depth of 2-4 nm and a width of 10-30 nm. The changes in the surface morphology, namely the holes-like surface morphology of the HPT-processed state, could be explained by a complex transformation of the amorphous structure, and probably by the variation and redistribution of free volume, which leads to the emergence of a cluster contrast in TEM images.
KW - Amorphous alloys
KW - severe plastic deformation
KW - transmission electron microscopy
KW - atomic force microscopy
UR - http://www.scopus.com/inward/record.url?scp=85052727556&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/DDF.385.200
DO - 10.4028/www.scientific.net/DDF.385.200
M3 - Conference contribution
AN - SCOPUS:85052727556
SN - 9783035713459
VL - 385 DDF
SP - 200
EP - 205
BT - Atomic force microscopy studies of severely deformed amorphous TiNiCu alloy
PB - Trans Tech Publications Ltd
CY - Defect and Diffusion Forum
T2 - 13th International Conference on Superplasticity in Advanced Materials, ICSAM 2018
Y2 - 19 August 2018 through 22 August 2018
ER -
ID: 34724908