Mechanical properties of laminated CuAl10Fe3Mn2 aluminum bronze - intermetallics composites

5th International Conference Recent Trends in Structural Materials

Konieczny, M.^1

Kielce University of Technology, Department of Metals Science and Materials Technologies, Poland^1

关键词: Aluminum bronze;    Fracture behavior;    In-vacuum;    Initial thickness;    Intermetallic phasis;    Loading condition;    Ti foil;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/461/1/012042/pdf
DOI  :  10.1088/1757-899X/461/1/012042

来源: IOP

【 摘 要 】

CuAl10Fe3Mn2-intermetallic phases laminated composites have been fabricated through reactive bonding at 875°C in vacuum using bronze foils (0.3 mm thick) and Ti foils with different initial thickness (0.05, 0.1 and 0.15 mm). The titanium layers were completely consumed during reaction resulting in microstructure of well-bonded bronze-intermetallics composites. The mechanical properties and fracture behavior of the fabricated composites were examined under different loading conditions through tension and impact tests. The results of investigations indicated that tensile properties of the composites strongly depended on the proportion between thickness of individual bronze layers and the thickness of intermetallics. The impact tests showed that when the load was applied perpendicular to the laminates, the composites displayed superior impact toughness. The toughness increased with increasing of remaining bronze thickness. The failure during impact testing occurred by cleavage mode for the specimens loaded parallel to the laminated composites and showed extensive plastic deformation for specimens loaded perpendicularly.