Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Effect of the eutectic Al-(Ce,La) phase morphology on microstructure, mechanical properties, electrical conductivity and heat resistance of Al-4.5(Ce,La) alloy after SPD and subsequent annealing. / Medvedev, Andrey E.; Murashkin, Maxim Y.; Enikeev, Nariman A.; Bikmukhametov, Ilyas; Valiev, Ruslan Z.; Hodgson, Peter D.; Lapovok, Rimma.
в: Journal of Alloys and Compounds, Том 796, 05.08.2019, стр. 321-330.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
}
TY - JOUR
T1 - Effect of the eutectic Al-(Ce,La) phase morphology on microstructure, mechanical properties, electrical conductivity and heat resistance of Al-4.5(Ce,La) alloy after SPD and subsequent annealing
AU - Medvedev, Andrey E.
AU - Murashkin, Maxim Y.
AU - Enikeev, Nariman A.
AU - Bikmukhametov, Ilyas
AU - Valiev, Ruslan Z.
AU - Hodgson, Peter D.
AU - Lapovok, Rimma
PY - 2019/8/5
Y1 - 2019/8/5
N2 - This paper reports on a crucial role of the morphology of intermetallic Al11RE3 phase and Al/Al11RE3 interphase (where RE - Rare Earth) surface area, before plastic deformation, on the electrical and mechanical properties and the thermostability of aluminium alloys. Cast Al-4.5 (Ce + La) alloy samples, processed with and without spheroidization treatment (ST), were subjected to high pressure torsion (HPT) at room temperature (RT) followed by annealing at 230 degrees C, 280 degrees C and 400 degrees C for 1 h. It is demonstrated, that the changes of initial alloy structure (particles shape/size) and the decrease of interphase surface area affect the distribution of intermetallic particles after HPT, the distribution of ultrafine grains and the dislocation density, as well as the formation of a supersaturated solid solution of Ce and La in aluminium. The optimal combination of strength (ultimate tensile stress (sigma(UTS)) 430 MPa) and conductivity (55.9% International Annealed Copper Standard, IACS) was obtained after ST, HPT and an annealing temperature of 230 degrees C. (C) 2019 Elsevier B.V. All rights reserved.
AB - This paper reports on a crucial role of the morphology of intermetallic Al11RE3 phase and Al/Al11RE3 interphase (where RE - Rare Earth) surface area, before plastic deformation, on the electrical and mechanical properties and the thermostability of aluminium alloys. Cast Al-4.5 (Ce + La) alloy samples, processed with and without spheroidization treatment (ST), were subjected to high pressure torsion (HPT) at room temperature (RT) followed by annealing at 230 degrees C, 280 degrees C and 400 degrees C for 1 h. It is demonstrated, that the changes of initial alloy structure (particles shape/size) and the decrease of interphase surface area affect the distribution of intermetallic particles after HPT, the distribution of ultrafine grains and the dislocation density, as well as the formation of a supersaturated solid solution of Ce and La in aluminium. The optimal combination of strength (ultimate tensile stress (sigma(UTS)) 430 MPa) and conductivity (55.9% International Annealed Copper Standard, IACS) was obtained after ST, HPT and an annealing temperature of 230 degrees C. (C) 2019 Elsevier B.V. All rights reserved.
KW - Atom probe tomography
KW - Electrical conductivity
KW - High-pressure torsion
KW - Intermetallic particles
KW - Mechanical strength
KW - Rare earth
KW - DESIGN
KW - STRENGTH
KW - AL
KW - SEGREGATION
KW - SOLID-SOLUTION
KW - SEVERE PLASTIC-DEFORMATION
KW - METALS
KW - GROWTH
KW - ZR
KW - GRAIN-BOUNDARY
UR - http://www.scopus.com/inward/record.url?scp=85065866404&partnerID=8YFLogxK
UR - http://www.mendeley.com/research/effect-eutectic-alcela-phase-morphology-microstructure-mechanical-properties-electrical-conductivity
U2 - 10.1016/j.jallcom.2019.05.006
DO - 10.1016/j.jallcom.2019.05.006
M3 - Article
AN - SCOPUS:85065866404
VL - 796
SP - 321
EP - 330
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
SN - 0925-8388
ER -
ID: 42319834