Influence of bismuth additives on the thermophysical and thermodynamic properties of aluminum conductive alloy E-AlMgSi (Aldrey)
https://doi.org/10.17073/1609-3577-2020-1-86-93
Abstract
The economic feasibility of using aluminum as a conductive material is explained by the favorable ratio of its cost to the cost of copper. It is also important that the cost of aluminum for many years remains virtually unchanged.
When using conductive aluminum alloys for the manufacture of thin wire, winding wire, etc. Certain difficulties may arise in connection with their insufficient strength and a small number of kinks before fracture. In recent years, aluminum alloys have been developed, which even in a soft state have strength characteristics that allow them to be used as a conductive material.
One of the promising areas for the use of aluminum is the electrical industry. Conducting aluminum alloys of the E-AlMgSi type (Aldrey) are representatives of this group of alloys. The paper presents the results of a study of the temperature dependence of heat capacity, heat transfer coefficient, and thermodynamic functions of an aluminum alloy E-AlMgSi (Aldrey) with bismuth. Research conducted in the "cooling" mode.
It was shown that the temperature capacity and the thermodynamic functions of the alloy E-AlMgSi (Aldrey) with bismuth increase with temperature, and the Gibbs energy decreases. Additives of bismuth up to 1 wt.% Reduce heat capacity, heat transfer coefficient, enthalpy and entropy of the initial alloy and increase the value of Gibbs energy.
About the Authors
I. N. Ganiev
Tajik Technical University named after academician M.S. Osimi
Tajikistan
Tajikistan
Izatullo N. Ganiev: Academician of the Academy of Sciences of the Republic of Tajikistan, Dr. Sci. (Chem.), Professor of Department “Technology of Chemical Production”
10 Radjabovs Str., Dushanbe 734042, Tajikistan
A. P. Abdulakov
Dangarinsk State University
Tajikistan
Tajikistan
Aslam P. Abdulakov: Assistant at the Department of “Rural Construction, Hydrotechnics and Geology”
25 Markazi Str., Dangara 735320, Tajikistan
J. H. Jayloev
Institute of Chemistry named after V. I. Nikitina, Academy of Sciences of the Republic of Tajikistan
Tajikistan
Tajikistan
Jamshed H. Jayloev: Senior Researcher
299/2 Sadriddin Ayni Str., Dushanbe 734063, Tajikistan
U. Sh. Yakubov
Institute of Chemistry named after V. I. Nikitina, Academy of Sciences of the Republic of Tajikistan
Tajikistan
Tajikistan
Umarali Sh. Yakubov: Senior Researcher
299/2 Sadriddin Ayni Str., Dushanbe 734063, Tajikistan
A. G. Safarov
Institute of Chemistry named after V. I. Nikitina, Academy of Sciences of the Republic of Tajikistan
Amirsho G. Safarov: Senior Researcher
299/2 Sadriddin Ayni Str., Dushanbe 734063, Tajikistan
V. D. Abulkhaev
Institute of Chemistry named after V. I. Nikitina, Academy of Sciences of the Republic of Tajikistan
Tajikistan
Tajikistan
Vladimir Dz. Abulkhaev: Dr. Sci. (Chem.), Professor, Deputy Director
299/2 Sadriddin Ayni Str., Dushanbe 734063, Tajikistan
References
1. Usov V. V., Zaimovsky A. S. Provodnikovye, reostatnye i kontaktnye materialy. Materialy i splavy v elektrotekhnike [Conductor, rheostat and contact materials. Materials and alloys in electrical engineering]. Vol. 2. Moscow; Leningrad: Gosenergoizdat, 1957, 184 p. (In Russ.)
2. Alyuminievye splavy: svoistva, obrabotka, primenenie [Aluminum alloys: properties, processing, application]. Moscow: Metallurgy, 1979, 679 p. (In Russ.)
3. Alieva S. G., Altman M. B., Ambartsumyan S. M. et al. Promyshlennye alyuminievye splavy: Spravochnik [Industrial aluminum alloys: Handbook]. Moscow: Metallurgy, 1984, 528 p. (In Russ.)
4. Beleskiy V. M., Krivov G. A. Alyuminievye splavy (Sostav, svoistva, tekhnologiya, primenenie) [Aluminum alloys (Composition, properties, technology, application)]. Kiev: KOMITEKh, 2005, 365 p. (In Russ.)
5. Chlistovsky R. M., Heffernan P. J., DuQuesnay D. L. Corrosion-fatigue behaviour of 7075-T651 aluminum alloy subjected to periodic overloads. Internat. J. Fatigue, 2007, vol. 29, no. 9–11, pp. 1941—1949. DOI: 10.1016/j.ijfatigue.2007.01.010
6. Luts A. R., Suslina A. A. Alyuminii i ego splavy [Aluminum and its alloys]. Samara: Samara State Technical University, 2013, 81 p. (In Russ.)
7. Berdiev A. E., Ganiev I. N., Niyozov H. H., Obidov F. U., Ismoilov R. A. Influence of Yttrium on the Anodic Behavior of the Alloy AK1M2. Izvestiya Vysshikh Uchebnykh Zavedenii. Materialy Elektronnoi Tekhniki = Materials of Electronics Engineering, 2014, vol. 17, no. 3, pp. 224—227. (In Russ.). DOI: 10.17073/1609-3577-2014-3-224-227
8. Ganiev I. N., Otajonov S. E., Ibrohimov N. F., Mahmudov M. Temperature dependence of the specific heat and thermodynamic functions AК1М2 alloy, doped strontium. Izvestiya Vysshikh Uchebnykh Zavedenii. Materialy Elektronnoi Tekhniki = Materials of Electronics Engineering, 2018, vol. 21, no. 1, pp. 35—42. (In Russ.). DOI: 10.17073/1609-3577-2018-1-35-42
9. Niezov Kh. Kh., Ganiev I. N., Berdiev A. E. Splavy osobochistogo alyuminiya s redkozemel’nymi metallami [Alloys high purity aluminium with rare-earth metals]. Dushanbe: Sarmad kompaniya, 2017, 146 p. (In Russ.)
10. Ganiev I. N., Aliev F. A., Odinazoda H. O., Safarov A. M., Jayloev J. H. Heat capacity and thermodynamic functions of aluminum conductive alloy E-AlMgSi (Aldrey) doped with gallium. Izvestiya Vysshikh Uchebnykh Zavedenii. Materialy Elektronnoi Tekhniki = Materials of Electronics Engineering, 2019, vol. 22, no. 3, pp. 219—227. (In Russ.). DOI: 10.17073/1609-3577-2019-3-219-227
11. Ganiev I. N., Nazarova M. T., Kurbonova M. Z., Yakubov U. Sh. Effects of sodium on the specific heat capacity and changes of thermodynamic functions of the aluminum alloy AB1. Bulletin of the St. Petersburg State Technological Institute (Technical University), 2019, no. 51, pp. 25—30. DOI: 10.36807/1998-9849-2019-51-77-25-30
12. Ganiev I. N., Safarov A. G., Odinaev F. R., Yakubov U. Sh., Kabutov K. Temperature dependence of heat capacity and the variation in thermodynamic function of the AZh4.5 alloy doped with tin. Russ. J. Non-ferrous Metals, 2019, vol. 60, pp. 139—145. DOI: 10.3103/S1067821219020044
13. Ganiev I. N., Mulloeva N. M., Nizomov Z., Obidov F. U. Temperature dependence of the specific heat and thermodynamic functions of alloys of the Pb-Ca system. High Temp., 2014, vol. 52, no. 1, pp. 138—140. DOI: 10.1134/S0018151X1401009X
14. Ganiev I. N. Yakubov U. Sh., Sangov M. M., Safarov A. G. Calcium influence upon the temperature dependence of specific heat capacity and on changes in the thermodynamic functions of aluminum alloy AlFe5S10. Vestnik tekhnologicheskogo universiteta = Bulletin of the Technological University, 2018, vol. 21, no. 8, pp. 11—15. (In Russ.)
15. Niyozov O. H., Ganiev I. N., Safarov A. G., Mulloeva N. M., Yakubov U. Sh. The temperature dependence of calorific capacity and thermodynamic function changes for the composition of lead-antimony-3 alloy and calcium. Bulletin of the South Ural State University. Series Metallurgy, 2019, vol. 19, no. 3, pp. 33—43. (In Russ.). DOI: 10.14529/met190304
16. Maltsev M. V. Modifikatory struktury metallov i splavov [Modifiers of the structure of metals and alloys]. Moscow: Metallurgiya, 1964, 238 p. (In Russ.)
17. Vahobov A. V., Ganiev I. N. Strontium - the effective modifier of silumin. Liteinoe proizvodstvo = Foundry. Technologies and Equipment, 2000, no. 5, pp. 28—29. (In Russ.)
18. Kargapolova T. B., Makhmadulloev H. A., Ganiev I. N., Khakdodov M. M. Barium: a new inoculant for silumins. Liteinoe proizvodstvo = Foundry. Technologies and Equipment, 2001, no. 10, pp. 6—9. (In Russ.)
Review
For citations:
Ganiev I.N., Abdulakov A.P., Jayloev J.H., Yakubov U.Sh., Safarov A.G., Abulkhaev V.D. Influence of bismuth additives on the thermophysical and thermodynamic properties of aluminum conductive alloy E-AlMgSi (Aldrey). Izvestiya Vysshikh Uchebnykh Zavedenii. Materialy Elektronnoi Tekhniki = Materials of Electronics Engineering. 2020;23(1):86-93. (In Russ.) https://doi.org/10.17073/1609-3577-2020-1-86-93
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