Effect of cooling rate on the solidification behaviour of MC MgAl6Zn1 alloy

• Autorzy: Dobrzański L. A. , Król M. , Tański T. , Maniara R.
• Języki publikacji: EN

Abstrakty

EN

Purpose: The goal of this paper is to present the thermal characteristics of magnesium alloy using the novel Universal Metallurgical Simulator and Analyzer Platform. Design/methodology/approach: The objective of this work is determine the liquidus, solidus temperature and beginning nucleation temperature to understanding crystallization of magnesium alloys. Findings: The research show that the thermal analysis carried out on UMSA Technology Platform is an efficient tool for collect and calculate thermal parameters. It was determined that the higher solidification rate decreases the solidus temperature. In addition, it was observed that the beginning of nucleation of .(Mg)-ß(Mg-Mg17Al12) eutectic temperature constituent increases when the solidification rate increases. Research limitations/implications: This paper presents results for one alloy – MC MgAl6Zn1 only, cooled with three different solidifications rate i.e. 0.6, 1.2 and 2.4oC/s, for assessment for the liquidus, solidus temperatures and describe a beginning of nucleation of .(Mg)-ß(Mg-Mg17Al12) eutectic. Practical implications: The parameters described can be applied in metal casting industry for selecting magnesium ingot preheating temperature for semi solid processing to achieve requirements properties or to predict how to prepare parameters to heat treatment. Originality/value: The paper contributes to better understanding and recognition an influence of different solidification condition on non-equilibrium thermal parameters of magnesium alloys.

Słowa kluczowe

EN

MC MgAl16Zn1; casting; thermal analysis; UMSA

PL

MC MgAl16Zn1; odlew; analiza termiczna; UMSA

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2009
• Tom: Vol. 37, nr 1
• Strony: 65--69
• Opis fizyczny: Bibliogr. 14 poz., rys., tabl.

Twórcy

autor

Dobrzański L. A.

autor

Król M.

autor

Tański T.

autor

Maniara R.

• Division of Materials Processing Technology, Management and Computer Techniques in Materials Science, Institute of Engineering Materials and Biomaterials, Silesian University of Technology, ul. Konarskiego 18a, 44-100 Gliwice, Poland,

Bibliografia

• [1] L. Cizek, M. Greger, L. Pawlica, L. A. Dobrzński, T. Tański, Study of selected properties of magnesium alloy AZ91 after heat treatment and forming, Journal of Materials Processing Technology 157-158 (2004) 466-471.
• [2] ASM Specialty Handbook- Magnesium and Magnesium Alloys, Ed. M.M. Avedesian, and H. Baker, ASM International, USA, 1999, 3-84.
• [3] K. U. Kainer, Magnesium – alloys and technologies, Wiley- VCH Verlag GmbH & Co. KG aA, Weinheim, 2003.
• [4] W. Kasprzak, J. H. Sokolowski, W. Sahoo, L. A. Dobrzański, Thermal and structural characteristics of the AZ50 magnesium alloy, Journal of Achievements in Materials and Manufacturing Engineering 29/2 (2008) 179-182.
• [5] http://www.magnesium.com
• [6] L. Backuerud, G. Chai, J. Tamminen, Solidification characteristics of aluminum alloys, Vol. 2: Foundry Alloys, AFS Skanaluminium, Stockholm, 1990.
• [7] L. Backuerud, G. Chai, Solidification characteristics of aluminum alloys, Vol. 3: Foundry Alloys, AFS Skanaluminium, Stockholm, 1990.
• [8] D. Emadi, L. V. Whiting, S. Nafisi, R. Ghomashchi, Applications of thermal analysis in quality control of solidification processes, Journal of Thermal Analysis and Calorimetry 81 (2005) 235-242.
• [9] L. A. Dobrzański, W. Kasprzak, M. Kasprzak, J. H. Sokolowski, A Novel Approach to the Design and Optimization of Aluminum Cast Component Heat Treatment Processes using Advanced UMSA Physical Simulations, Journal of Achievements in Materials and Manufacturing Engineering 24/2 (2007) 139-142.
• [10] Method and Apparatus for Universal Metallurgical Simulation and Analysis -United States Patent, Patent No.: US 7,354,491 B2, Date of Patent: Apr. 8. 2008.
• [11] Universal Metallurgical Simulator and Analyzer (UMSA) Platform for the Advanced Simulation of Melting and Solidification Processes, Software Information, 2002.
• [12] http://uwindsor.ca/umsa
• [13] F. C. Robles Hernandez, J. H. Sokolowski, Thermal analysis and microscopical characterization of Al-Si hypereutectic alloys, Journal of Alloys and Compounds 419 (2006) 180-190.
• [14] L. A. Dobrzański, R. Maniara, J. H. Sokolowski, W. Kasprzak, Effect of cooling rate on the solidification behavior of AC AlSi7Cu2 alloy, Journal of Materials Processing Technology 191 (2007) 317-320.