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

Ганиев, И. Н.; Otajonov, Suhrob E.; Ibrohimov, Nasim F.; Mahmudov, M.

doi:10.3897/j.moem.4.3.38763

Cited by 3 publications

(1 citation statement)

References 13 publications

(16 reference statements)

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“…7. The decrease in the specific heat capacity of the alloys at elevated temperatures (above 1 370 ℃) could be a result of the heterogeneity of the alloys which may likely change their crystallization mode [27].…”

Section: Resultsmentioning

confidence: 99%

Simulation of the effects of Zr and Co addition on the properties of NiAl-Mo(Cr) alloy

Salifu

Olubambi

2022

MATEC Web Conf.

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The introduction of computational modelling during alloy development has significantly reduced the cost of production and the prolonged time spent by researchers doing trials and errors in the laboratory. In this study, computational software (JMat Pro) was used to simulate the effect of the addition of Zr and Co, on the material properties of NiAl-Mo(Cr) alloy such as the elastic modulus, hardness, thermal conductivity, bulk modulus and specific heat capacity. A significant improvement in the mechanical properties was observed in the developed alloys as compared to those without Zr and Co. Also, the addition of as low as 0.5 at. % Zr and 1.0 at. % Co to NiAl-Cr(Mo) resulted in improved compressive strength and plasticity of the alloy.

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Section: Resultsmentioning

confidence: 99%

Simulation of the effects of Zr and Co addition on the properties of NiAl-Mo(Cr) alloy

Salifu

Olubambi

2022

MATEC Web Conf.

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Heat capacity and thermodynamic functions of alloys of the Pb–Zn system

Navruzov¹,

Ганиев²,

Khayrullo³

et al. 2020

Вест. ПГУ. Химия

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In the “cooling” mode, by comparing the cooling curves of the standard (Pb grade C00) and the samples under study, the effect of lead alloying with zinc additions on the heat capacity and thermodynamic functions of alloys was studied. The calculations were carried out using computer technology and the Sigma Plot program. The performed studies have shown that with increasing temperature and the amount of zinc, the heat capacity, heat transfer coefficient, enthalpy and entropy of alloys increase, while the Gibbs energy value decreases

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Influence of lithium on the temperature dependence of heat capacity and thermodynamic functions changes in AK1 alloy based on high-purity aluminum

Ganiev,

Rakhimov,

Otadzhonov

et al. 2024

Vopr. materialoved.

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The heat capacity of the AK1 alloy based on high-purity aluminum with lithium was determined in the cooling mode using the known heat capacity of the reference aluminum sample. By means of mathematical processing of cooling rate curves of samples from AK1 alloy with lithium and the reference sample, polynomials describing their cooling rates were obtained. Further, the polynomials of the temperature dependence of the heat capacity of alloys, described by a four-member equation, were established using the experimentally found values of the cooling rates of samples from alloys and the standard, taking into account their mass. Using integrals from specific heat capacity, models of temperature dependence of enthalpy, entropy and Gibbs energy changes were established. It was found that the heat capacity of the alloys increases with rising temperature. The addition of lithium when the temperature is up to 600 K significantly increases the heat capacity, and at temperatures above 600 K lithium in amounts of 0.5 wt. % reduces the heat capacity of the initial alloy AK1. It is shown that lithium addition increases the enthalpy and entropy of the initial AK1 alloy and decreases the Gibbs energy value.

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

Cited by 3 publications

References 13 publications

Simulation of the effects of Zr and Co addition on the properties of NiAl-Mo(Cr) alloy

Simulation of the effects of Zr and Co addition on the properties of NiAl-Mo(Cr) alloy

Heat capacity and thermodynamic functions of alloys of the Pb–Zn system

Influence of lithium on the temperature dependence of heat capacity and thermodynamic functions changes in AK1 alloy based on high-purity aluminum

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