The Crystal Segregation During Casting of the Alloy AlZn5.5Mg2.5Cu1.5

• Autorzy: Weiss V. , Svobodova J. , Cais J.

Identyfikatory

DOI

10.2478/afe-2014-0038

• Języki publikacji: EN

Abstrakty

EN

In the course of homogenizing annealing of aluminium alloys being cast continually or semi-continually it appears that chemical inhomogenity takes off within separate dendritic cells (crystal segregation). It is about a diffusion process that takes place at the temperature which approaches the liquid temperature of the material. In that process the transition of soluble intermetallic compounds and eutectic to solid solution occurs and it suppresses crystal segregation significantly [1]. The temperature, homogenization time, the size of dendritic cells and diffusion length influences homogenizing process. The article explores the optimization of homogenizing process in terms of its time and homogenizing annealing temperature which influence mechanical properties of AlZn5,5Mg2,5Cu1,5 alloy.

Słowa kluczowe

EN

theory of crystallization; heat treatment; homogenizing annealing; crystal segregation; alloy Al-Zn-Mg-Cu

PL

krystalizacja; obróbka cieplna; wyżarzanie; stop Al-Zn-Mg-Cu

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2014
• Tom: Vol. 14, iss. 2
• Strony: 63--68
• Opis fizyczny: Bibliogr. 6 poz., rys., tab., wykr.

Twórcy

autor

Weiss V.

• Department of Technology and Material Engineering, J.E. Purkyně University in Ústí nad Labem , Pasteurova 7, 400 01 Ústí nad Labem, Czech Republic

autor

Svobodova J.

• Department of Technology and Material Engineering, J.E. Purkyně University in Ústí nad Labem , Pasteurova 7, 400 01 Ústí nad Labem, Czech Republic

autor

Cais J.

• Department of Technology and Material Engineering, J.E. Purkyně University in Ústí nad Labem , Pasteurova 7, 400 01 Ústí nad Labem, Czech Republic

Bibliografia

• [1] Grígerová,T., Lukač, I. & Kořený, R. (1988). Foundry of non- The Crystal Segregation During Casting of the Alloy AlZn5.5Mg2.5Cu1.5 metals. Praha.
• [2] Michna, Š., Lukáč, I., Louda, P., Očenášek & kol. (2005). Aluminium materials and technologies from A to Z. Adin s.r.o. ISBN 978-80-89244-18-8.
• [3] Lukač, I. & Michna, Š. (2001). Colour contrast, structure and defects in aluminium and aluminium alloys. Cambridge International Science Publishing. ISBN 18-983-26-70-3.
• [4] Michna, Š. & Nová, I. (2008). The technology and treatment of metallic material. Adin, s.r.o. Prešov. ISBN 978-80-89244-38-6.
• [5] Pisarek, B. (2012). Effect of Annealing Time for Quenching CuAl7Fe5Ni5W2Si2 Bronze on the Microstructure and Mechanical Properties. Archives of Foundry Engineering. Volume 12 (Issue 2/2012), pp. 187-204, ISSN 1897-3310.
• [6] Pezda, J. (2012). Heat Treatment of AlZn10Si7MgCu Alloy and its Effect on Change of Mechanical Properties. Archives of Foundry Engineering. Volume 12 (Issue 2/2012), pp. 135-138, ISSN 1897-3310.