Heat treatment of AlSi9Mg alloy

• Autorzy: Pezda J.
• Języki publikacji: EN

Abstrakty

EN

Processes of crystallization of alloys have decisive impact on structure of castings, and the same their utility characteristics. Knowledge about those processes constitutes a source of information to development of preparation of liquid metal and control of alloy preparation process within industry. Method of Thermal-Voltage-Derivative Analysis (ATND), developed by Faculty of Chipless Forming Technology enables registration of temperature and voltage curves, on which one can observe thermal and voltage effects being result of crystallization of phases and eutectic mixtures present on these curves in form of characteristic "peaks". Temperature value read offs for these characteristic points become a basis to taking regression analysis aimed at obtaining of mathematical dependences illustrating effect of changes of these values on change of impact resistance of dispersion hardened AK9 alloy. The paper presents an attempt of implementation of Thermal-Voltage-Derivative Analysis method to determination of temperature of hyperquenching and ageing processes of AK9 (AlSi9Mg) silumin. Investigated alloy had undergone typical treatments of refining and modification, and next the heat treatment. Temperature range for the heat treatment has been determined on base of ATND melting curves.

Słowa kluczowe

EN

heat treatment; crystallization; regression analysis; ATND method

PL

obróbka cieplna; krystalizacja; analiza regresji; metoda ATND

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2008
• Tom: Vol. 8, iss. 1
• Strony: 169--172
• Opis fizyczny: Bibliogr. 9 poz., rys., tab.

Twórcy

autor

Pezda J.

• Akademia Techniczno-Humanistyczna, 43-309 Bielsko - Biała, ul. Willowa 2,,

Bibliografia

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• [3] S. Pietrowski, Silumins, Wydawnictwo Politechniki Łódzkiej, Łódź, 2001 (in Polish)
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• [5] R. Gorockiewicz Influence heat treatment in structure of silumnins, Archives of foundry, vol. 3 No 9 2003 (in Polish)
• [6] Lu. Shu-Zu, A. Hellawel, Modyfication of Al-Si alloys: microstructure, thermal analysis and mechanics, IOM vol. 47, No 2, 1995
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• [8] J. Pezda, Heat treatment of AK132, Archives of Foundry vol. 6, No. 22 (2006) 358-363 (in Polish)
• [9] J. Pezda, Identification of AG10 alloy's mechanical properties on base of ATND method, Archives of Foundry vol. 7, 1 (1/2) (2007) 135-138