TY - GEN
T1 - Influence of severe plastic deformation on physicomechanical properties of Ti-40 mas % Nb alloy
AU - Kovalevskaya, Zhanna G.
AU - Khimich, Margarita A.
AU - Belyakov, Andrey V.
AU - Shulepov, Ivan A.
PY - 2016
Y1 - 2016
N2 - The changes of the phase composition, structure and physicomechanical properties of Ti-40 mas % Nb after severe plastic deformation are investigated in this paper. By the methods of microstructural, X-ray diffraction analysis and scanning electron microscopy it is determined that phase and structural transformations occur simultaneously in the alloy after severe plastic deformation. The martensitic structure formed after tempering disappears. The inverse α″ → β transformation occurs. The structure consisting of oriented refined grains is formed. The alloy is hardened due to the cold working. The Young modulus is equal to 79 GPa and it is less than that of initial alloy and close to the value obtained after tempering. It is possible that Young modulus is reduced by additional annealing.
AB - The changes of the phase composition, structure and physicomechanical properties of Ti-40 mas % Nb after severe plastic deformation are investigated in this paper. By the methods of microstructural, X-ray diffraction analysis and scanning electron microscopy it is determined that phase and structural transformations occur simultaneously in the alloy after severe plastic deformation. The martensitic structure formed after tempering disappears. The inverse α″ → β transformation occurs. The structure consisting of oriented refined grains is formed. The alloy is hardened due to the cold working. The Young modulus is equal to 79 GPa and it is less than that of initial alloy and close to the value obtained after tempering. It is possible that Young modulus is reduced by additional annealing.
KW - Grain refinement
KW - Hardening
KW - Severe plastic deformation
KW - Ti-40 mas % Nb
KW - Young modulus
UR - http://www.scopus.com/inward/record.url?scp=84958167605&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84958167605&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/KEM.685.525
DO - 10.4028/www.scientific.net/KEM.685.525
M3 - Conference contribution
AN - SCOPUS:84958167605
SN - 9783038357087
VL - 685
T3 - Key Engineering Materials
SP - 525
EP - 529
BT - Key Engineering Materials
PB - Trans Tech Publications Ltd
T2 - 4th International Conference for Young Scientists High Technology: Research and Applications, HTRA 2015
Y2 - 21 April 2015 through 24 April 2015
ER -