Abrasive wear of BA1055 bronze with additives of Si, Cr, Mo and/or W

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

Abstrakty

EN

Aluminium bronzes belong to the high-grade constructional materials applied on the put under strongly load pieces of machines, about good sliding, resistant properties on corrosion both in the cast state how and after the thermal processing. It moves to them Cr and Si in the aim of the improvement of their usable proprieties. The additions Mo and/or W were not applied so far. It was worked out therefore the new kind of bronzes casting including these elements. Make additions to the Cu-Al-Fe-Ni bronze of Si, Cr, Mo and/or W in the rise of these properties makes possible. The investigations of the surface distribution of the concentration of elements in the microstructure of the studied bronze on X-ray microanalyzer were conducted. It results from conducted investigations, that in the aluminium bronze BA1055 after makes additions Si, Cr, Mo and/or W the phases of the type [kappa]_Fe, [kappa]_Ni crystallize, probably as complex silicides. Elements such as: Fe and Si dissolve first of all in phases [kappa], in smaller stage in the matrix of the bronze; Mn, Ni and W they dissolve in matrix and phases [kappa]. It dissolves Cr and Mo in the larger stage in phases [kappa] than in the matrix. The sizes of the abrasive wear were compared in the state cast multicomponent new casting Cu-Al-Fe-Ni bronzes with the additives Cr, Mo or W with the wear of the bronze CuAl10Fe5Ni5Si. The investigations of the wear were conducted on the standard device. It results from conducted investigations, that make additions to bronze BA1055 of the additives of Si, Cr, Mo, and/or W it influences the rise of the hardness (HB) of the bronze in the cast state, in the result of the enlarged quantity separates of hard phases [kappa], and in the consequence the decrease of the abrasive wear. The addition of molybdenum made possible obtainment of the microhardness of the phase [alpha] and [gamma]_2 on the comparable level. From the microstructure of the bronze CuAl10Fe5Ni5MoSi is characterizes the smallest abrasive wear among studied bronzes. More far works over new multicomponent aluminium bronzes will be guided in the direction of the identification of the changes of mechanical properties of studied bronzes under the influence of the thermal processing.

Słowa kluczowe

EN

resistant alloys on the wear; abrasive wear; multicomponent aluminium bronze; cast state; microstructure; mechanical properties

PL

stopy; odporność; mikrododatki; mikrostruktura; właściwości mechaniczne

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2008
• Tom: Vol. 8, iss. 3
• Strony: 209--216
• Opis fizyczny: Bibliogr. 5 poz., fot., rys., tab.

Twórcy

autor

Pisarek B. P.

• Department of Materials Engineering and Production Systems, Technical University of Łódź Stefanowskiego 1/15 Street, 90-924 Łódź,

Bibliografia

• [1] Z. Górny, Cast Aluminium Bronze, Instytut Odlewnictwa, Kraków, 2006 (in Polish).
• [2] E. van der Heide, E.D. Stam, H. Giraud, G. Lovato, N. Akdut, F. Clarysse, P. Caenen, I. Heikillä, Wear of aluminium bronze in sliding contact with lubricated stainless steel sheet material, Wear 261, 2006, 68-73.
• [3] W.S. Li, Z.P. Wang, Y. Lu, Y.H. Jin, L.H. Yuan, F. Wang, Mechanical and tribological properties of a novel aluminium bronze material for drawing dies, Wear 261, 2006, 155-163.
• [4] B. P. Pisarek, Influence Cr on crystallization and the phase transformation of the Bronze BA1044, Archives of Foundry Engineering, Vol. 7, issue 3, July-September 2007, 129-136.
• [5] B. P. Pisarek, The crystallization of the aluminium bronze with additions of Si, Cr, Mo and/or W, Archives of Materials Science and Engineering, Vol. 28, issue 8, august 2007, 461-466.