Effect of two-stage isothermal annealing on microstructure CuAl10Fe5Ni5 bronze with additions of Si, Cr, Mo, W and C

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

Abstrakty

EN

The aim of this study was to investigate the effect of a two-step isothermal annealing respectively at 1000 ˚C for 30 min, then at the range of 900÷450 ˚C increments 50 ˚C on the microstructure CuAl10 Ni5Fe5 bronze with additions of Si, Cr, Mo, W and C, cast into sand moulds. The study concerned the newly developed species, bronze, aluminium-iron-nickel with additions of Si, Cr, Mo, W and C. In order to determine the time and temperature for the characteristic of phase transitions that occur during heat treatment of the test method was used thermal and derivation analysis (TDA). The study was conducted on cylindrical test castings cast in the mould of moulding sand. It was affirmed that one the method TDA can appoint characteristic for phase transformations points about co-ordinates: τ (s), t (˚C), and to plot out curves TTT for the studied bronze with their use. It was also found that there is a five isothermal annealing temperature ranges significantly altering the microstructure of examined bronze.

Słowa kluczowe

EN

innovative casting material; innovative casting technology; technological properties; bronze alloy; TTT curve

PL

innowacyjny materiał odlewniczy; innowacyjna technologia odlewnicza; właściwości technologiczne; stop brązu

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2011
• Tom: Vol. 11, iss. 3 spec.
• Strony: 187--194
• Opis fizyczny: Bibliogr. 10 poz., rys., tab., wykr.

Twórcy

autor

Pisarek B. P.

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

Bibliografia

• [1] D.L. Thomas: Metastable system involving β et β1 phases in copper-aluminium alloys, J. Inst. Metals, 94, p. 250-254, 1966.
• [2] S. Prowans: Metallography, PWN, 1988 (in Polish).
• [3] 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, s. 461-466, August 2007.
• [4] B. Pisarek: Influence Cr on crystallization and the phases transformations of the bronze BA1044, Archives of Foundry Engineering, vol. 7, Issue 3, s. 129-136, July-September 2007.
• [5] B. Pisarek: Abrasive wear of BA1055 bronze with additives of Si, Cr, Mo and/or W, Archives of Foundry Engineering, vol. 8, Issue 3, s. 209–216, July–September 2008.
• [6] 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, s. 185-192, October–December 2008.
• [7] 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, s. 185-192, October–December 2008.
• [8] 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, s. 127-134, April-June 2010.
• [9] B. Pisarek: Simulation of volumetric shrinkage Sv and surface shrinkage Svp, Wysokojakościowe Technologie Odlewnicze, Materiały I Odlewy, PAN, s. 167-208, Katowice – Gliwice 2011.
• [10] B. Pisarek: Effect of additions of Cr, Mo, W and/or Si on the technological properties of aluminium-iron-nickel bronze, Archives of Foundry Engineering, vol. 11, Issue 3, p. 199-208, July-September 2011.