2019
DOI: 10.15407/mfint.41.09.1171
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Peculiarities of Quasicrystalline Al$_{72}$Co$_{18}$Ni$_{10}$ and Al$_{65}$Co$_{20}$Cu$_{15}$ Fillers Dissolution during Composites Impregnation Process with Brass-Binder

Abstract: В работе исследована структура квазикристаллических сплавов Al 65 Co 20 Cu 15 и Al 72 Co 18 Ni 10 , а также композиционных материалов на их основе, полученных методом печной пропитки. Использованы методы металлографического, рентгеноструктурного, электронно-микроскопического и микрорентгеноспектрального анализов. В сплаве Al 65 Co 20 Cu 15 квазикристаллическая декагональная фаза сосуществует с кристаллическими фазами Al 4 (Co, Cu) 3 и Al 3 (Cu, Co) 2 , а в сплаве Al 72 Co 18 Ni 10-с фазами Al 9 (Co 1−х Ni х) 2… Show more

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Cited by 20 publications
(16 citation statements)
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“…As the D-phase is observed at room temperature the stability of this phase with respect to decomposition into its neighboring phases is clearly confirmed. The average volume fraction of D-quasicrystals is about 59 vol.% of the total alloy volume [24]. Their sizes range from 50 to 80 m.…”
Section: Resultsmentioning
confidence: 99%
See 1 more Smart Citation
“…As the D-phase is observed at room temperature the stability of this phase with respect to decomposition into its neighboring phases is clearly confirmed. The average volume fraction of D-quasicrystals is about 59 vol.% of the total alloy volume [24]. Their sizes range from 50 to 80 m.…”
Section: Resultsmentioning
confidence: 99%
“…Quasicrystals have many attractive properties, such as high hardness, low electrical and thermal conductivities, low surface energy, accompanied by a low coefficient of friction, reasonable oxidation and strong corrosion resistance, and unusual optical properties which have not been observed for crystalline alloys [9][10][11][12][13]. These properties can only be used for technological applications in the form of thin film coatings [14][15][16][17][18] or reinforcement particles in metal matrix composites [19][20][21][22][23] in order to circumvent their intrinsic brittleness. In the course of their operation, Al-Co-Ni and Al-Fe-Ni alloys are often subjected to the action of corrosive media, but very little information is available on how such alloys behave in corrosion media.…”
mentioning
confidence: 99%
“…Поэтому в наших расчётах мы использовали наиболее оптимальную массу капли 0,6 г, следуя рекомендациям автора монографии [14]. Плотность металлов при температуре плавления была найдена из справочных материалов 1 . Значения плотности, рассчитанных значений σ и радиусов растекания капли приведены в таблице 1.…”
Section: основные теоретические положенияunclassified
“…It results in the loss of the valuable properties and severely limits the high temperature characteristics of the alloys restricting their use in critical applications. However, the combination of excellent performance properties makes them the perspective materials for surface application [6][7][8][9][10][11][12][13].…”
Section: Introductionmentioning
confidence: 99%