Influence of technological factors on eutectic silicon morphology in Al-Si alloys

• Autorzy: Skočovsky P. , Tillová E. , Belan J.
• Języki publikacji: EN

Abstrakty

EN

From the background about Al-Si alloys modifying from eutectic silicon morphology and mechanical properties relation point of view is at solving of chosen technological problems used structural analysis and Si morphology quantification. There were solved two concrete problems: parameters of solution annealing AlSi9Cu3 alloy and confirming of laser treatment influence on AlSi7Mg0.3 alloy structure. In both cases have material heating caused spheroidization of eutectic silicon. Optimal regime of AlSi9Cu3 alloy (515 oC/4 hrs.) solution annealing was confirmed based on structural analysis, which have achieved fine globular silicon particles segregation and structural changes study at AlSi7Mg0,3 alloy after laser treatment showed improving of mechanical properties, proved also with metallography analysis. Modern methods of structure analysis application enable to spread present knowledge's in area of technological research.

Słowa kluczowe

EN

metallography; Al-Si alloys; silicon morphology; heat treatment; laser treatment

PL

metalografia; stop aluminiowo-krzemowy; morfologia krzemu; obróbka cieplna; obróbka laserowa

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2009
• Tom: Vol. 9, iss. 2
• Strony: 169--172
• Opis fizyczny: Bibliogr. 13 poz., rys., tab., wykr.

Twórcy

autor

Skočovsky P.

autor

Tillová E.

autor

Belan J.

• Department of Materials Engineering, Faculty of Mechanical Engineering, University of Žilina, Univerzitná 1, 010 26 Žilina, Slovakia,

Bibliografia

• [1] N. Fatahalla - M. Hafiz - M. Abdulkhalek: Effect of microstructure on mechanical properties and fracture of commercial hypoeutectic Al-Si alloy modified with Na, Sb and Sr. Journal of Materials Science, Nr.34, (1999), 3555-3564.
• [2] F. Romankiewicz - R. Romankiewicz: Modifying influence on structure and morphology of AK 64 silumin fracture. Archives Foundry 6 (2006), 1, Tom I., 275-279 (in Polish).
• [3] L. Wang - S. Shivkumar: Strontium modification of Al. alloy castings in the expendable pattern casting process. Journal of Materials Science 30, (1995), 1584-1594.
• [4] P. Ashtari - H. Tezuka - T. Sato: Modification of Fecontaining intermetallic compounds in AlSiCu cast alloys using Sr, Li and Mn additions. Materials Forum, Vol.28, (2004), 951-955.
• [5] A. K. Dahle and all: Eutectic modification and microstructure development in Al-Si alloys. Materials Science and Engineering A, 413-414, (2005), 243-248.
• [6] E. J. Martínez D. and all: Effect of Sr and cooling rate upon eutectic temperatures of A319 aluminum alloy. Scripta Materialia 52, (2005), 439-443.
• [7] D. Bolibruchová, D. - E. Tillová, E.: Al-Si casting alloys, EDIS, Žilina, 2005 (in Slovak).
• [8] P. Skočovský - M. Kiš - A. Vaško: Quantitative evaluation of eutectic silicon shape in silumins. Archives Foundry 4 (2004), 11, Vol. II, 160-165 (in Polish).
• [9] P. Skočovsky - A. Vaško: Quantitative evaluation of structure in cast iron, EDIS ŽU Žilina 2007 (in Slovak).
• [10] M. Panušková - E. Tillová - M. Chalupová: Relation between mechanical properties and microstructure of Al. Cast alloy AlSi9Cu3. Problemy pročnosti/Strength of Materials, No.1 (391), 2008, ISSN: 0556-17IX, Kyjev, Ukrajina, pp. 109-112.
• [11] E. Tillová - M. Panušková: Effect of solution treatment on intermetallic phase's morphology in AlSi9Cu3 cast alloy. Mettalurgija, METABK 47 (3) 133-137 (2008), ISSN 0543-5846,1-4.
• [12] Z. Kubincová - P. Skočovský: Laser Surface treatment of A356 Alloy. Materials Engineering, Vol.14, (2007), 2, 42-45.
• [13] W. Serbiński - J. I. Łubiński - K. Druet: Microstructure and wear of cast aluminium alloy with laser modified surface layer. Advanced in Materials Science, Vol. 4, No. 2 (4), (2003).