Development of the fundamentals of melting and casting technology of Al-Me (Cr, Ni, Mo, W, Ti) master alloys used for modification of microstructure in silumins

• Autorzy: Piątkowski J.
• Języki publikacji: EN

Abstrakty

EN

The study presents the technological backgrounds of the process of melting and casting Al-Cr, Al-Ni, Al-Mo, Al-W and Al-Ti master alloys, used as refiners of the microstructure of cast silumins. Basing on the analysis of phase equilibrium diagrams for an Al-Me (Cr, Ni, Mo, W, Ti) system at a temperature of 900oC, the characteristic intermetallic phases of AlxMey were investigated. Due to their similarity with Al and Si in respect of both structure and lattice arrangement, these phases may act as heterogeneous nuclei and promote solution hardening during, e.g., heat treatment. Using the method of thermal analysis ATD, the temperature was plotted in function of time, and then the characteristic values of the solidification parameters of master alloys were read out from the respective curves.

Słowa kluczowe

EN

theoretical basis; casting process; silumin; thermal analysis; analysis of phase

PL

podstawy teoretyczne; proces odlewniczy; silumin; analiza termiczna; analiza fazy

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2009
• Tom: Vol. 9, iss. 2
• Strony: 17--20
• Opis fizyczny: Bibliogr. 5 poz., rys., tab., wykr.

Twórcy

autor

Piątkowski J.

• Chair of Metal Alloys and Composites Engineering, Silesian University of Technology, ul. Krasińskiego 8, 40-019 Katowice, Poland,

Bibliografia

• [1] S. Pietrowski, Siluminy nadeutektyczne i eutektyczne z dodatkami Cr, Mo, W i Co, Inżynieria Materiałowa, 2003, R. XXIV, vol. 6, p. 818-820 (in Polish).
• [2] S. Pietrowski, Silumin nadeutektyczny z dodatkami Cr, Mo, W Co, Krzepnięcie metali i stopów, 38, PAN Katowice 1998.
• [3] Z. Górny, J. Sobczak, Nowoczesne tworzywa odlewnicze na bazie metali nieżelaznych, ZA-PIS, Kraków 2005 (in Polish).
• [4] S. Pietrowski, Complex silumin, Journal of Achievements in Materials and Manufacturing Engineering, (2007) Issue 1, Vol. 24, p. 101-105.
• [5] M. Hansen, K. Anderko, Constitution of binary alloys, McGraw - Hill Book Company, INC, New York 1958.