DSC and TA characteristics of the inoculated Al-Zn20 alloy

• Autorzy: Krajewski, W. K. , Buraś, J. , Piwowarski, G. , Haberl, K. , Tsivoulas, D.
• Języki publikacji: EN

Abstrakty

EN

The paper brings information about inoculation process of the sand-cast binary Al-20 wt% Zn (AlZn20) alloy, inoculated with Ti-containing grain-refiners, i.e. AlTi5B1, AlTi3C0.15 and (AlZn)-Ti3 master alloys (MA). During the experiments thermal analyses (TA) and differential scanning calorimetry (DSC) were used. Macrostructure observations were performed using light microscopy (LM). On the basis of the performed examinations it was found that all the MAs used in this work caused significant grain refinement, which initiates via a heterogeneous nucleation mode. The obtained structure fineness of the inoculated AlZn20 alloy should positively influence its ductility, which is of great importance for the practical application of this group of foundry alloys.

Słowa kluczowe

PL

krystalizacja; proces krzepnięcia; analiza termiczna; kalorymetria skaningowa; stop odlewniczy Al-Zn

EN

theory of crystallization; solidification process; thermal analysis; differential scanning calorimetry (DSC); Al-Zn cast alloys

• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2011
• Tom: Vol. 11, iss. 1
• Strony: 65-68
• Opis fizyczny: Bibliogr. 9 poz., rys., wykr.

Twórcy

autor

Krajewski, W. K.

autor

Buraś, J.

autor

Piwowarski, G.

autor

Haberl, K.

autor

Tsivoulas, D.

• Faculty of Foundry Engineering, AGH University of Science and Technology, Reymonta 23, 30-059 Krakow, Poland,

Bibliografia

• [1] W. K. Krajewski, A. L. Greer, J. Zych, J. Buraś, Effectiveness of Zn-Ti based refiner of Al and Zn foundry alloys Foundry Trade Journal, vol. 180, No. 3642, (2007) 97-100.
• [2] K. Haberl, W. K. Krajewski, P. Schumacher, Microstructural Features of the Grain-refined Sand Cast Alloy AlZn20, Archives of Metallurgy and Materials, vol. 55, No. 3, (2010) 837-841.
• [3] K. Haberl, Examination of the influence of various grain refiners on an AlZn20-alloy, Marie Curie Host Fellowship report, Krakow, June 2009, pp. 13 (unpublished).
• [4] K. Haberl, Examination of AlZn20 alloyed with various grain refiners, Marie Curie Host Fellowship report, Leoben, May 2010, pp. 9 (unpublished).
• [5] D. Tsivoulas, Development of Al-Zn and Al-Mg cast alloys and composites Marie Curie Host Fellowship report, Krakow, June 2010, pp. 21 (unpublished).
• [6] D. Tsivoulas, T. Czeppe, W. K. Krajewski, DSC examinations of the Al - 20 wt% Zn sand-cast alloy inoculated with Ti-containing grain refiners. Inżynieria Materiałowa, vol. 175, Nr 3, (2010) 590-593.
• [7] W. K. Krajewski, Structure and properties of high-aluminium zinc alloys inoculated with Ti addition (retrospective coverage), Archives of Foundry, vol. 5, No. 15 (2005) 231-240.
• [8] W. K. Krajewski, J. Buras, K. Haberl, P. Schumacher, Development of environmentally friendly cast alloys and composites. High-Zinc Al based cast alloys. Archives of Foundry Engineering, vol. 10, special issue 1 (2010) 431-434.
• [9] J. Buraś, The influence of grain refinement on damping properties of selected aluminium zinc cast alloys. PhD thesis, AGH University of Science and Technology, Krakow 2010 (in Polish).