Interlayers in Metal Matrix Composites: Characterisation and Relevance for the Material Properties

2006 ◽  
pp. 197-213
Author(s):  
J. Woltersdorf ◽  
A. Feldhoff ◽  
E. Pippel
2011 ◽  
Vol 678 ◽  
pp. 95-104
Author(s):  
Riccardo Donnini ◽  
Loredana Santo ◽  
Vincenzo Tagliaferri

The aim of this paper is to investigate the behaviour in terms of drilling forces and roughness of Metal Matrix Composites (MMC) in hot drilling machining. In particular, Al2009/(SiC)w, Al6061/(SiC)w, and Al6061(Al2O3)p metal matrix composites were used, and the adopted temperature were in the range 20°C-160°C. A comparison with drilling at room temperature has been discussed. The results have shown the sensible influence of the working temperature on drilling forces and on surface material properties. In the case of Al2009/(SiC)w a minimum in the drilling forces has been found, making possible the dry machining and improving the cutting conditions. Instead, for Al6061/(SiC)W and Al6061(Al2O3)p in the used temperature range no minimum appears.


JOM ◽  
1992 ◽  
Vol 44 (10) ◽  
pp. 36-40 ◽  
Author(s):  
P. K. Liaw ◽  
R. E. Shannon ◽  
W. G. Clark ◽  
W. C. Harrigan ◽  
H. Jeong ◽  
...  

1995 ◽  
Vol 39 (3) ◽  
pp. 220-228 ◽  
Author(s):  
P.K. Liaw ◽  
R.E. Shannon ◽  
W.G. Clark ◽  
W.C. Harrigan ◽  
H. Jeong ◽  
...  

2016 ◽  
Vol 29 (1) ◽  
pp. 51-75 ◽  
Author(s):  
Stefan Schindler ◽  
Julia Mergheim ◽  
Marco Zimmermann ◽  
Jan C. Aurich ◽  
Paul Steinmann

Author(s):  
A. Lawley ◽  
M. R. Pinnel ◽  
A. Pattnaik

As part of a broad program on composite materials, the role of the interface on the micromechanics of deformation of metal-matrix composites is being studied. The approach is to correlate elastic behavior, micro and macroyielding, flow, and fracture behavior with associated structural detail (dislocation substructure, fracture characteristics) and stress-state. This provides an understanding of the mode of deformation from an atomistic viewpoint; a critical evaluation can then be made of existing models of composite behavior based on continuum mechanics. This paper covers the electron microscopy (transmission, fractography, scanning microscopy) of two distinct forms of composite material: conventional fiber-reinforced (aluminum-stainless steel) and directionally solidified eutectic alloys (aluminum-copper). In the former, the interface is in the form of a compound and/or solid solution whereas in directionally solidified alloys, the interface consists of a precise crystallographic boundary between the two constituents of the eutectic.


Author(s):  
M. G. Burke ◽  
M. N. Gungor ◽  
P. K. Liaw

Aluminum-based metal matrix composites offer unique combinations of high specific strength and high stiffness. The improvement in strength and stiffness is related to the particulate reinforcement and the particular matrix alloy chosen. In this way, the metal matrix composite can be tailored for specific materials applications. The microstructural characterization of metal matrix composites is thus important in the development of these materials. In this study, the structure of a p/m 2014-SiC particulate metal matrix composite has been examined after extrusion and tensile deformation.Thin-foil specimens of the 2014-20 vol.% SiCp metal matrix composite were prepared by dimpling to approximately 35 μm prior to ion-milling using a Gatan Dual Ion Mill equipped with a cold stage. These samples were then examined in a Philips 400T TEM/STEM operated at 120 kV. Two material conditions were evaluated: after extrusion (80:1); and after tensile deformation at 250°C.


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