Effect of cerium on the thermophysical properties of AMg2 alloy

Иброхимов, Н. Ф.; Ганиев, И. Н.; Nizomov, Z.; Ганиева, Н. И.; Иброхимов, С. Ж.

doi:10.1134/s0031918x16010063

Cited by 14 publications

(3 citation statements)

References 1 publication

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“…The cooling rate was determined by plotting cooling curves for the samples. The cooling curves were sample temperature dependences on time of cooling in air [7][8][9][10][11][12][13][14][15].…”

Section: Methodsmentioning

confidence: 99%

Heat capacity and thermodynamic functions of E-AlMgSi (Aldrey) aluminum conductor alloy doped with gallium

Ганиев¹,

Aliev²,

Odinazoda³

et al. 2020

MoEM

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Aluminum is a metal having permanently broadening applications. Currently aluminum and its alloys successfully replace conventional metals and alloys in a number of application fields. The wide use of aluminum and its alloys is primarily stipulated by its advantageous properties e.g. low density, high corrosion resistance and electrical conductivity as well as the possibility of applying protective and decorative coatings. In combination with great abundance and relatively low cost which has been almost constant in recent years, this permanently broadens the application range of aluminum. The electrochemical industry is one of the promising application fields of aluminum. The E-AlMgSi type (Aldrey) conductor aluminum alloy has high strength and ductility. This alloy acquires high electrical conductivity upon appropriate heat treatment. Products made from it are used almost exclusively for overhead power lines. This work presents data on the temperature dependence of heat capacity, heat conductivity and thermodynamic functions of the E-AlMgSi (Aldrey) aluminum alloy doped with gallium. The studies have been carried out in "cooling" mode. It has been shown that with an increase in temperature the heat capacity and thermodynamic functions of E-AlMgSi (Aldrey) alloy doped with gallium increase while the Gibbs energy decreases. Gallium doping to 1 wt.% reduces the heat capacity, enthalpy and entropy of the initial alloy and increases the Gibbs energy.

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Section: Methodsmentioning

confidence: 99%

Heat capacity and thermodynamic functions of E-AlMgSi (Aldrey) aluminum conductor alloy doped with gallium

Ганиев¹,

Aliev²,

Odinazoda³

et al. 2020

MoEM

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“…We measured the heat capacity of the alloys on an instrument the operation of which is based on the method of a C-calorimeter with a heat gage and an adiabatic enclosure. The heat capacity measurement method and the instrument design were reported earlier [16][17][18][19][20].…”

Section: Methodsmentioning

confidence: 99%

Temperature dependence of the heat capacity and change in the thermodynamic functions of strontium-alloyed AK1M2 alloy

Ганиев¹,

Otajonov²,

Ibrohimov³

et al. 2018

MoEM

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The temperature dependence of the specific heat capacity and change in the thermodynamic functions of strontium-alloyed ultrahigh-purity aluminum base AK1M2 alloy have been studied in “cooling” mode over the 298.15–900 K range. Mathematical models describing the evolution of these properties of the alloys in the abovementioned temperature range with change in alloying addition concentration have been obtained. The heat capacity, enthalpy and entropy of the alloys increase with temperature, decrease with an increase in the alloying addition concentration to 0.5 wt.% and grow with a further increase in the alloying addition concentration. The Gibbs energy of the alloys has an inverse dependence: it decreases with an increase in temperature and grows with an increase in the alloying addition concentration to 0.5 wt.%.

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“…Теплоемкость сплава АЖ4.5 с оловом измеряли в режиме охлаждения по методикам, описанным в работах [19,20]. Для определения температуры использовали многоканальный цифровой термометр, который позволял фиксировать результаты измерений прямо на компьютере в виде таблиц.…”

Section: теория метода и описание установкиunclassified

Temperature dependence of specific heat and thermodynamic functions of Al + 4,5 % Fe alloys doped with tin

Ганиев

Safarov

Одинаев

et al. 2019

Izv.VUZ. Tsvet. Met.

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Известно, что технический алюминий с повышенным содержанием железа, кремния и других примесей из-за низких эксплуатационных характеристик не может найти применение в промышленности. Отсюда разработка новых составов сплавов на основе такого металла весьма актуальна. На диаграмме Al-Fe перспективными являются эвтектика (α-Al + + Al 3 Fe) и заэвтектические составы, которые, имея минимальный интервал кристаллизации, соответствуют содержанию железа 2-5 мас.%. Сплав состава Al + 4,5 % Fe (АЖ4.5) был принят нами в качестве модельного и подвергался модифицированию оловом. Была экспериментально определена температурная зависимость теплоемкости сплава АЖ4.5, легированного оловом, и выполнен расчет изменений его термодинамических функций. Исследования проводились в режиме охлаждения с применением компьютерной техники и программы «Sigma Plot». Установлены полиномы температурной зависимости теплоемкости и изменения термодинамических функций (энтальпии, энтропии и энергии Гиббса) сплава АЖ4.5, легированного оловом, и эталона (Cu), характеризуемые коэффициентом корреляции R корр = 0,999. Установлено, что с ростом содержания олова теплоемкость исходного сплава уменьшается, а с увеличением температуры -повышается. Энтальпия и энтропия сплава АЖ4.5 с ростом содержания олова и температуры растут, а значения энергии Гиббса -снижаются.

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Effect of cerium on the thermophysical properties of AMg2 alloy

Cited by 14 publications

References 1 publication

Heat capacity and thermodynamic functions of E-AlMgSi (Aldrey) aluminum conductor alloy doped with gallium

Heat capacity and thermodynamic functions of E-AlMgSi (Aldrey) aluminum conductor alloy doped with gallium

Temperature dependence of the heat capacity and change in the thermodynamic functions of strontium-alloyed AK1M2 alloy

Temperature dependence of specific heat and thermodynamic functions of Al + 4,5 % Fe alloys doped with tin

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