Statistical analysis using multiple regression of stereological parameters for skeleton castings microstructure

• Autorzy: Cholewa M. , Dziuba-Kałuża M.
• Języki publikacji: EN

Abstrakty

EN

In this article authors showed influence of technological parameters and modification treatment on structural properties for closed skeleton castings. Approach obtained maximal refinement of structure and minimal structure diversification. Skeleton castings were manufactured in accordance with elaborated production technology. Experimental castings were manufactured in variables technological conditions: range of pouring temperature 953÷1013 K , temperature of mould 293÷373 K and height of gating system above casting level 105÷175 mm. Analysis of metallographic specimens and quantitative analysis of silicon crystals and secondary dendrite-arm spacing analysis of solution α were performed. Average values of stereological parameters for all castings were determined. (B/L) and (P/A) factors were determined. On basis results of microstructural analysis authors compares research of samples. The aim of analysis was selected samples on least diversification of refinement degree of structure and least silicon crystals. On basis microstructural analysis authors state that samples 5 (AlSi11, T_pour 1013K, T_mould 333K, h – 265 mm) has the best structural properties (least diversification of refinement degree of structure and the least refinement of silicon crystals). Then statistical analysis results of structural analysis was obtained. On basis statistical analysis autors state that the best structural properties for technological parameters: T_pour = 1013 K, T_mould = 373 K and h = 230 mm [4]. The results of statistical analysis are the prerequisite for optimization studies.

Słowa kluczowe

EN

AlSi alloy; microstructural analysis; statistical analysis; skeleton casting

PL

stop Al-Si; analiza mikrostrukturalna; analiza statystyczna; odlew szkieletowy

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2011
• Tom: Vol. 11, iss. 3 spec.
• Strony: 43--48
• Opis fizyczny: Bibliogr. 17 poz., rys., tab., wykr.

Twórcy

autor

Cholewa M.

• Department of Foundry, Faculty of Mechanical Engineering, Silesian University of Technology, Towarowa 7, 44-100 Gliwice, Poland

autor

Dziuba-Kałuża M.

• Department of Foundry, Faculty of Mechanical Engineering, Silesian University of Technology, Towarowa 7, 44-100 Gliwice, Poland

Bibliografia

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