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Comparative analysis of phase composition and heat resistance of piston silumin and experimental alloy Al4Cu2Mn0·5Ca0·2Zr (wt. %).

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Title: Comparative analysis of phase composition and heat resistance of piston silumin and experimental alloy Al4Cu2Mn0·5Ca0·2Zr (wt. %).
Authors: Belov, N. A.1 (AUTHOR) nikolay-belov@yandex.ru, Kovalev, A. I.2 (AUTHOR), Vinnik, D. A.2,3,4 (AUTHOR), Tsydenov, K. A.1 (AUTHOR)
Source: Metallurgist. Oct2024, Vol. 68 Issue 6, p866-876. 11p.
Subjects: Copper, X-ray microanalysis, Vickers hardness, Solid solutions, Electron microscopy
Abstract: Based upon the Al-Cu-Mn system, aluminum hypoeutectic heat resistant aluminum alloy of the Al4Cu2Mn0.5Ca0.2Zr (wt. %) (P2) composition is developed, synthesized, and studied. An effect of increasing thermal stability is achieved due to nanosize dispersed intermetallics Al20Cu2Mn3 and Al3Zr, and also with addition of eutectic-forming elements, whose role is played by calcium. It is established that reserves of alloying an aluminum matrix within piston silumin is almost exhausted by the limit of silicon, copper and manganese solubility within aluminum solid solution. In order to substantiate the piston silumin P1 chemical composition a calculation is made for the phase composition of the Al-Si-Cu-Mg-Ni-Fe-Mn system by means of Thrmoclac software. Welded alloy microstructure is studied by means of electron microscopy (SEM) and X-ray microanalysis (XRMA). Vickers hardness of the alloy proposed P2 and equivalent piston silumin P1 is compared in the original condition and after annealing at 250 and 400 °C with a step of 50 °C, as a result of which alloy P2 developed retains more effectively hardness on heating, than for alloy P1, being potentially more heat resistant. [ABSTRACT FROM AUTHOR]
Copyright of Metallurgist is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Comparative analysis of phase composition and heat resistance of piston silumin and experimental alloy Al4Cu2Mn0·5Ca0·2Zr (wt. %).
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  Data: <searchLink fieldCode="JN" term="%22Metallurgist%22">Metallurgist</searchLink>. Oct2024, Vol. 68 Issue 6, p866-876. 11p.
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  Data: <searchLink fieldCode="DE" term="%22Copper%22">Copper</searchLink><br /><searchLink fieldCode="DE" term="%22X-ray+microanalysis%22">X-ray microanalysis</searchLink><br /><searchLink fieldCode="DE" term="%22Vickers+hardness%22">Vickers hardness</searchLink><br /><searchLink fieldCode="DE" term="%22Solid+solutions%22">Solid solutions</searchLink><br /><searchLink fieldCode="DE" term="%22Electron+microscopy%22">Electron microscopy</searchLink>
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  Label: Abstract
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  Data: Based upon the Al-Cu-Mn system, aluminum hypoeutectic heat resistant aluminum alloy of the Al4Cu2Mn0.5Ca0.2Zr (wt. %) (P2) composition is developed, synthesized, and studied. An effect of increasing thermal stability is achieved due to nanosize dispersed intermetallics Al20Cu2Mn3 and Al3Zr, and also with addition of eutectic-forming elements, whose role is played by calcium. It is established that reserves of alloying an aluminum matrix within piston silumin is almost exhausted by the limit of silicon, copper and manganese solubility within aluminum solid solution. In order to substantiate the piston silumin P1 chemical composition a calculation is made for the phase composition of the Al-Si-Cu-Mg-Ni-Fe-Mn system by means of Thrmoclac software. Welded alloy microstructure is studied by means of electron microscopy (SEM) and X-ray microanalysis (XRMA). Vickers hardness of the alloy proposed P2 and equivalent piston silumin P1 is compared in the original condition and after annealing at 250 and 400 °C with a step of 50 °C, as a result of which alloy P2 developed retains more effectively hardness on heating, than for alloy P1, being potentially more heat resistant. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Metallurgist is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1007/s11015-024-01793-4
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      – SubjectFull: Vickers hardness
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              Text: Oct2024
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