Effect of Microstructure on Mechanical Properties of BA1055 Bronze Castings

• Autorzy: Łabanowski J. , Olkowski T.

Identyfikatory

DOI

10.2478/afe-2014-0040

• Języki publikacji: EN

Abstrakty

EN

The article presents research results performed on aluminum bronze CuAl10Fe5Ni5 (BA1055) castings used for marine propellers. Metallographic studies were made on light microscope and a scanning electron microscope to assess quantitatively and qualitatively the alloy microstructure. It has been shown that the shape, size and distribution of the iron-rich κ−phase precipitates in bronze microstructure significantly affect its mechanical properties. With an increase in the number of small κ−phase precipitates increases the tensile strength of castings, while the presence of large globular precipitates improves ductility. Fragmentation and shape of κ−phase precipitates depends on many factors, particularly on the chemical composition of the alloy, Fe/Ni ratio, cooling rate and casting technology.

Słowa kluczowe

EN

ship propeller castings; bronze casting; mechanical properties; metallography

PL

śruby okrętowe; odlewy z brązu; właściwości mechaniczne; metalografia

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2014
• Tom: Vol. 14, iss. 2
• Strony: 73--78
• Opis fizyczny: Bibliogr. 11 poz., rys., tab., wykr.

Twórcy

autor

Łabanowski J.

• Department of Materials Science and Welding, Gdansk University of Technology, 11/12 Narutowicza, 80-233 Gdansk, Poland

autor

Olkowski T.

• Department of Materials Science and Welding, Gdansk University of Technology, 11/12 Narutowicza, 80-233 Gdansk, Poland

Bibliografia

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• [7] Berezina P. (1973). Structure and mechanical properties of multi-component aluminum bronzes of the type CuAl10Fe5Ni5. Gisereiforschung, Jg.25, H.3, pp. 125-234.
• [8] Berezina P. (1973). Structure and mechanical properties of multi-component aluminum bronzes of the type CuAl10Fe5Ni5. Giesereiforschung, Jg.25, H.4, pp. 1-10.
• [9] Crofts W.J., Towsend D.W. & Bates A.P. (1964). Soundness and reproducibility of properties of sand-cast complex aluminium bronzes. The British Foundryman, 57 (2).
• [10] Stasiński A. & Grudowska A. (1971). Manganese bronze castings in the application of marine propellers. Foundry Review, 11, pp. 387-389 (in Polish).
• [11] Łabanowski J. & Olkowski T. (2009). Effect of chemical composition and microstructure on mechanical properties of BA1055 bronze sand castings. Advances in Materials Science . Versita, Warsaw, 9(19), pp. 23-29.