Effect of Process Parameters on Exudation Thickness in Continuous Unidirectional Solidification Tin Bronze Alloy

• Autorzy: Jihui Luo , Fang He

Identyfikatory

DOI

10.24425/afe.2019.127123

• Języki publikacji: EN

Abstrakty

EN

The exudation layer seriously affects the properties and the surface finish of the tin bronze alloy. The effective control of the exudation thickness is important measure for improving the properties of the alloy. In order to study the influence of process parameters on the thickness of exudate layer, the tin bronze alloy was prepared by continuous unidirectional solidification technology at different process parameters. The microstructure of the continuous unidirectional solidification tin bronze alloy was analyzed. The effect of process parameters on microstructure and chemical compositions was studied by orthogonal experiment. The results show that there exists an exudation layer on the surface of the continuous unidirectional solidification tin bronze alloy, and the exudation is mainly composed of a tin-rich precipitated phase. It indicates that the continuous casting speed is the main factor affecting the thickness of exudation layer, followed by mold temperature, melt temperature, cooling water temperature and cooling distance.

Słowa kluczowe

EN

unidirectional solidification; tin bronze alloy; orthogonal experiment; exudation

PL

krzepnięcie jednokierunkowe; stop cynowo-brązowy; eksperyment ortogonalny; wysięki

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2019
• Tom: iss. 2
• Strony: 97--100
• Opis fizyczny: Bibliogr. 12 poz., rys., tab., wykr.

Twórcy

autor

Jihui Luo

• Yangtze Normal University, China

autor

Fang He

• School of Robot Engineering, Yangtze Normal University, China

Bibliografia

• [1] Kawada, Y., Kato, H. & Toyooka, S. (2002). Evaluation of inverse segregation in Cu−8mass%Sn alloy ingot with visible light spectroscopy. Journal of the Japan Foundrymens Society. 74, 650-653. DOI: 10.11279/ jfes.74.650.
• [2] Varschavsky, A. & Donoso, E. (1998). A calorimetric investigation on the kinetics of solute segregation to partial dislocations in Cu–3.34at%Sn. Materials Science and Engineering A. 251, 208-215. DOI: 10.1016/s0921-5093(98)00616-9.
• [3] Martorano, M.A. & Capocchi, J.D.T. (2000). Effects of processing variables on the microsegregation of directionally cast samples. Metallurgical and Materials Transactions A. 31(12), 3137-3148. DOI: 10.1007/s11661-000-0093-3.
• [4] Kumoto, E.A., Alhadeff, R.O. & Martorano, M.A. (2002). Microsegregation and dendrite arm coarsening in tin bronze. Materials Science and Technology. 18, 1001-1006. DOI: 10.1179/026708302225005882.
• [5] Liu, X.Y., Tham D, Yates, D. & Mcmahon, C.J. (2007). Evidence for the intergranular segregation of tin to grain boundaries of a Cu–Sn alloy and its consequences for dynamic embrittlement. Materials Science and Engineering A. 458, 123-125. DOI: 10.1016/j.msea.2006.12.103.
• [6] Huang, J.S., Zhang, J., Cuevas, A. & Tu, K.N. (1997). Recrystallization and grain growth in bulk Cu and Cu( Sn) alloy. Materials Chemistry and Physics. 49, 33-41. DOI: 10.1016/S0254-0584(97)80124-1.
• [7] Öztürk, S., Öztürk, B., Erdemir, F. & Usta, G. (2011). Production of rapidly solidified Cu–Sn ribbons by water jet cooled rotating disc method. Journal of Materials Processing Technology. 211, 1817-1823. DOI: 10.1016/ j.jmatprotec.2011.06.001.
• [8] Haug, E., Mo, A. & Thevik, H. J. (1996). Macrosegregation near a cast surface caused by exudation and solidification shrinkage. International Journal of Multiphase Flow. 38(9), 1553-1563. DOI: 10.1016/0017-9310(94)00286-5.
• [9] Thevik, H. J., Mo, A. & Rusten, T. (1999). A mathematical model for surface segregation in aluminum direct chill casting. Metallurgical & Materials Transactions B. 30(1), 135-142. DOI: 10.1007/s11663-999-0013-x.
• [10] Kaempffer, F. & Weinberg, F. (1971). Macrosegregation in a copper alloy directionally cast with exudation of liquid. Metallurgical Transactions, 2(9), 2477-2483. DOI: 10.1007/BF02814885.
• [11] Bayat, N. & Carlberg, T. (2014). Surface structure formation in direct chill (DC) casting of Al Alloys. JOM. 66(5), 700-710. DOI: 10.1007/s11837-014-0950-y.
• [12] Luo, J.H. (2018). Formation mechanism of surface segregation in heated mold continuous casting Al–Cu Alloy. Light Metals 2018. 435-439. DOI: 10.1007/978-3-319-72284-9_59.

Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019)