Effect of additions of Cr, Mo, W and/or Si on the technological properties of aluminum-iron-nickel bronze

• Autorzy: Pisarek B. P.
• Języki publikacji: EN

Abstrakty

EN

The aim of this study was to investigate the effect of additives of Cr, Mo, W and / or Si CuAll0Fe5Ni5 bronze, cast into sand moulds, the bronze technological properties such as: porosity, volumetric shrinkage Sv, linear shrinkage s and prone hot to cracking. The study relate to the newly developed grades aluminum-iron-nickel bronze, with additions of Cr, Mo, W and/or Si. In order to determine the technological properties of the test castings were made in the form of moulding sand, which made the mould cavities designed patterns. To evaluate the porosity and volumetric shrinkage was used for digital image analysis method. Volumetric shrinkage was determined using developed, the new method, the surface shrinkage Svp designation, and then converting it to the volumetric shrinkage, using prepared relation Sv=f(Djs)*Svp. It was found that made the bronze alloy additions to reduce the size of pores surface area of gas and shrinkage in the test bronze. The probability of microporosity with an area of 0.002560-0.120647 mm2 can be described by gamma distribution. Changing the chemical composition of the grades tested bronze strongly alter the first volumetric shrinkage Sv, and less to change the linear shrinkage s. The increase in gas porosity and shrink in bronze reduces the volumetric shrinkage and linear. The addition of Cr, Mo, W and/or Si to the bronze CuAll0Fe5Ni5 does not change its prone to hot cracking.

Słowa kluczowe

EN

innovative casting materials; innovative casting technologies; technological properties; aluminum; nickel; bronze; volumetric shrinkage; linear shrinkage; porosity

PL

innowacyjne materiały odlewnicze; innowacyjne technologie odlewnicze; właściwości technologiczne; aluminium; nikiel; żelazo; brąz; skurcz objętościowy; skurcz liniowy; porowatość

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2011
• Tom: Vol. 11, iss. 3
• Strony: 199--208
• Opis fizyczny: Bibliogr. 11 poz., rys., tab., wykr.

Twórcy

autor

Pisarek B. P.

• Department of Materials Engineering and Production Systems, Technical University of Łódź, 1/15 Stefanowskiego Str., 90-924 Łodź, Poland,

Bibliografia

• [1] B. Pisarek: The crystallization of the bronze with additions of Si, Cr, Mo and/or W, Archives of Materials Science and Engineering, vol. 28, Issue 8, p. 461-466, August 2007.
• [2] B. Pisarek: Influence Cr on crystallization and the phases transformations of the bronze BA1044, Archives of Foundry Engineering, vol. 7, Issue 3, p. 129-136, July-September 2007.
• [3] B. Pisarek: Abrasive wear of BA1055 bronze with additives of Si, Cr, Mo and/or W, Archives of Foundry Engineering, vol. 8, Issue 3, p. 209-216, July-September 2008.
• [4] B. Pisarek: The influence of wall thickness on the microstructure of bronze BA1055 with the additions of Si, Cr, Mo and/or W, Archives of Foundry Engineering, vol. 8, Issue 4, p. 185-192, Octomber-December 2008.
• [5] B. Pisarek: The influence of wall thickness on the microstructure of bronze BA1055 with the additions of Si, Cr, Mo and/or W, Archives of Foundry Engineering, vol. 8, Issue 4, p. 185-192, Octomber-December 2008.
• [6] B. Pisarek: Influence of the technology of melting and inoculation preliminary alloy AlBe5 on change of concentration of Al and microstructure of the bronze CuAl10Ni5Fe4, Archives of Foundry Engineering, vol. 10, Issue 2, p. 127-134, April-June 2010.
• [7] Z. Górny, J. Sobczak: Modern materials casting on the basis of non-ferrous metals, ZA-PIS, Kraków 2005 (in Polish).
• [8] F. N. Streltsov et al.: Lit. Proizv. 2, p. 67-68, 1976.
• [9] D. Janke, W. A. Fischer: Metall 29, 12/1975, s. 1189-1193.
• [10] W. Mizerski: Tables chemicals, Wydawnictwo Adamantan, Warszawa 1997 (in Polish).
• [11] B. Pisarek: Simulation of volumetric shrinkage Sv and surface shrinkage Svp, Wysokojakościowe Technologie Odlewnicze, Materiały I Odlewy, PAN, p. 167-208, Katowice - Gliwice 2011.