Determination of melting and solidification enthalpy of hypereutectic silumins

• Autorzy: Piątkowski J. , Szymszal J.
• Języki publikacji: EN

Abstrakty

EN

The study was related with determination of the values of enthalpy of melting and solidification of hypereutectic AlSi18, AlSi21 and AlSi24 silumins modified with phosphorus in the form of Cu-P. The calorimetry, preceded by thermal analysis and derivative thermal analysis (TA and DTA, respectively) was carried out on a high-temperature scanning calorimeter, model MHTC-96, made by SETARAM, applying the method of direct determination of parameters of the high-temperature process, and in particular of the enthalpy of phase transformations. Modern control and measuring instruments coupled with PC computer provide a very precise tool for determination of these transformations. An additional advantage was development of appropriate software called "SETSOFT", owing to which it was possible to determine in an easy way the enthalpy of the investigated phase transformations. Moreover, an additional thermal effect, related most probably with pre-eutectic crystallization of primary silicon, was observed and confirmed by calorimetric examinations.

Słowa kluczowe

EN

calorimetric analysis; enthalpy of melting; solidification; hypereutectic silumins

PL

analiza kalorymetryczna; entalpia; topienie; krzepnięcie; silumin nadeutektyczny

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2008
• Tom: Vol. 8, iss. 1
• Strony: 97--100
• Opis fizyczny: Bibliogr. 5 poz., rys., tab., wykr.

Twórcy

autor

Piątkowski J.

autor

Szymszal J.

• Politechnika Śląska, Wydział Inżynierii Materiałowej i Metalurgii, Katedra Technologii Stopów Metali i Kompozytów 40-019 Katowice, ul. Krasińskiego 8,

Bibliografia

• [1] The investigation of the scanning calorimetry in the influence preceded phases. Silesian University of Technology, Katowice, 2004. (in Polish).
• [2] Binczyk F., Przeliorz R., Bzymek J., Kulasa J.: The apply of the scanning calorimetry to determination of melting and solidification enthalpy of phases alloys. Conference of Metallurgy PAN. Cracow 2006 (in Polish).
• [3] The SetSoft program. Silesian University of Technology, Katowice, 2004. (in France).
• [4] S. Pietrowski, Silumines. Silesian University of Technology. Łódź 2001. (in Polish).
• [5] J. Piątkowski, The dissertation scientific paper. Silesian University of Technology, Katowice, 2000 (in Polish).