Physics of the Solid State
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Influence of high pressures on the formation of new phase in the Al86Ni2Co6Gd6 alloy
Menshikova S. G.
1, Brazhkin V. V.
2
1Udmurt Federal Research Center, Ural Branch Russian Academy of Sciences, Izhevsk, Russia
2Institute for High Pressure Physics, Russian Academy of Sciences, Troitsk, Moscow, Russia
2Institute for High Pressure Physics, Russian Academy of Sciences, Troitsk, Moscow, Russia
Email: svetlmensh@mail.ru, brazhkin@hppi.troitsk.ru
The structure, elemental and phase composition of the eutectic alloy Al86Ni2Co6Gd6 (hereinafter referred to as at.%) During the solidification of the melt from 1500oC at a rate of 1000oC/s under high pressure of 3 and 7 GPa have been investigated by X-ray diffraction analysis and electron microscopy. Solidification of the melt under high pressure leads to a change in the phase composition of the alloy and the formation of an anomalously supersaturated solid solution of α-Al(Gd). At a pressure of 7 GPa, new phases were synthesized: Al3Gd* (like Al3U) containing Co and Ni, with a primitive cube structure (cP4/2) with a lattice parameter a=4.285±0.002 Angstrem and Al8Co4Gd* (like Al8Cr4Gd) with a tetragonal structure (tI26/1) with parameters a=8.906±0.003 Angstrem and c=5.150±0.003 Angstrem. The structure of all the samples obtained is homogeneous, dense, finely dispersed, without shrinkage cavities and pores. The average microhardness of the samples is high due to solid solution and precipitation hardening. Keywords: high pressure, microstructure, phase, microhardness, melt.
- I. Inoue. Prog. Mater. Sci. 43, 365 (1998)
- A.M. Glezer, N.A. Shurygina. Amorfno-nanokristallicheskie splavy. Fizmatlit, M. (2014). 42 pp (in Russian)
- G.E. Abrosimova, A.S. Aronin. Phys. Solid State 59, 11, 2248 (2017)
- S.M. Stishov, L.G. Khvostantsev, V.N. Slesarev, S.V. Popova, V.V. Brazhkin, et al. Phys.-Usp. 51, 10, 1055 (2008)
- S.V. Popova, V.V. Brazhkin, T.I. Dyuzheva. Phys.-Usp. 51, 10, 1064 (2008)
- S.M. Stishov. Fazovye perekhody dlya nachinayushchikh. Trovant, M., (2014). 90 pp (in Russian)
- V.F. Degtyareva, Doctoral Dissertation in Mathematics and Physics. "Struktura i ustoichivost' faz vysokogo davleniya v binarnykh splavakh sp-metallov". Chernogolovka (2002). 205 pp (in Russian)
- S.G. Rassolov, E.A. Sviridova, V.V. Maksimov, V.K. Nosenko, I.V. Zhikharev, D.V. Matveev, E.A. Pershina, V.I. Tkach. Metallofiz. Noveishie Tekhnol. 37, 8, 1089 (2015) (in Russian)
- A.P. Shpak, V.V. Maslov, A.B. Mel'nik, A.N. Timoshevskii. Metallofiz. Noveishie Tekhnol. 25, 111, 1461 (2003) (in Russian)
- V.V. Brazhkin. Candidate's Dissertation in Mathematics and Physics. "Vliyanie vysokogo davleniya na zatverdevanie metallicheskikh rasplavov (Pb, In, Cu, dvoinye splavy na osnove medi)". M. (1996). 150 pp (in Russian)
- S.G. Menshikova, V.V. Brazhkin, V.I. Lad'yanov, B.E. Pushkarev, A.A. Suslov. Lett. Mater. 10, 4, 433 (2020)
- S.G. Menshikova, V.V. Brazhkin, V.I. Lad'yanov, B.E. Pushkarev. Crystal Growth 524, 125164 (2019)
- S.G. Menshikova, I.G. Shirinkina, I.G. Brodova, V.V. Brazhkin, V.I. Lad'yanov, B.E. Pushkarev. J. Crystal Growth 525, 125206 (2019)
- I.G. Brodova, P.S. Popel', N.M. Barbin, N.A. Vatolin. Iskhodnye rasplavy kak osnova formirovaniya strukturnykh svoistv alyuminievykh splavov. Ural. Otd. Ross. Akad. Nauk, Yekaterinburg (2005). 369 pp (in Russian)
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