Influence exothermical mixtures contents Na or B on elongation and hardness AlSi12 alloy

• Autorzy: Lipiński T.
• Języki publikacji: EN

Abstrakty

EN

The experiments were conducted on alloy AlSi12, following a factor design 2_3 for 3 independent variables. Mixtures composed of NaNO_3, Na_2B_4O_7, and Mg were used for alloy treatment. The amount of a reducing agent (Mg) necessary to carry out the process was calculated on the basis of chemical reactions. The mass fraction (weight in weight concentration) of individual variables is presented in Table 1. Results of study present by graphical forms. Figures 2-8 present until elongation (A5) and Brinell hardness (HB) for each variable, at extreme (lower or higher) levels of the other two.

Słowa kluczowe

EN

theory of crystallization; aluminium alloys; silumin; crystallization; metallothermy

PL

krystalizacja; stop aluminium; siluminy; metalotermia

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2008
• Tom: Vol. 8, iss. 1
• Strony: 81--84
• Opis fizyczny: Bibliogr. 15 poz., rys., tab.

Twórcy

autor

Lipiński T.

• Uniwersytet Warmińsko-Mazurski, Wydział Nauk Technicznych, 10-957 Olsztyn ul. Oczapowskiego 11,

Bibliografia

• [1] Z.Poniewierski: Crystallization structure and properties of silumins, WNT Warsaw (1989) (in Polish)
• [2] E.Fraś, Crystallization of metals, PWN Warsaw (1992) (in Polish)
• [3] Z.Konopka, Crystallization of AK9-Pb compsite. Częstochowa (1999) (in Polish)
• [4] Xiufang B., Weimin W., Jingyu Q. Liquid structure of Al-12.5% Si alloy modified by antimony. Materials Characteriz
• [5] A.Bydałek, Surface influence of nitrigen at slag rafination of copper. Poznań-Kołobrzeg (1994) (in Polish)
• [6] F.Romankiewicz, R.Romankiewicz, The influence of modification for structure and morphology fractures of alloy AlSi132. Archives of foundry vol. 6, Nr 22 (2006) (in Polish)
• [7] I.Nova, J.Exner, Z.Hosek, I.Novakova, Crystallization of Al-Si alloys in the course of high pressure die-casting. Archives of foundry vol.4, Nr14 (2004)
• [8] W.Wołczyński: Application of the Chemical Potential Gradient In the Description of Eutectic Steady Growth. Metalurgy and foundry, nr 2 (1990)
• [9] T.Lipiński, Tensile strength control of AlSi12 alloy with the aid exothermic mixture treatment, Archives of foundry vol 6, nr 22 (2006) (in Polish)
• [10] W.Orłowicz, M.Mróz, M.Tupaj, Effect of modification and mold temperature on mechanical properties of AlSi7Mg alloy. Archives of foundry vol. 6, Nr 18 (2006) (in Polish)
• [11] S.Borkowski, Quality controll of cast constructional materiale for example cast iron, WNT Warsaw (1999) (in Polish)
• [12] T.Lipinski, Influence exothermic mixture contains with
• [13] T.Lipiński, Influence multicomponents mixtures for increase properties of cast alloys Al-Si. Balttechmasz-2000. Kaliningrad (2000) (in Russion)
• [14] Khan S., Ourdjini A., Liu J., Elliott R., Growth kinetics of aluminium silicon eutectic alloys. Aluminium Alloys (1992)
• [15] Liu J., Elliott R. Lamellar fault formation during eutectic growth. Journal of Crystal Growth 162 (1996)