Dependence of Fracture Characteristics on the Thickness of the Specimen in Case of Metal Matrix Composites: An Experimental Study

Author(s):  
S. K. Kourkoulis
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.


2019 ◽  
Vol 14 ◽  
pp. 211-218 ◽  
Author(s):  
T. Thirugnanasambandham ◽  
J. Chandradass ◽  
P. Baskara Sethupathi ◽  
M. Leenus Jesu Martin

2019 ◽  
Vol 166 ◽  
pp. 401-413 ◽  
Author(s):  
Emin Salur ◽  
Abdullah Aslan ◽  
Mustafa Kuntoglu ◽  
Aydın Gunes ◽  
Omer Sinan Sahin

1992 ◽  
Vol 23 (6) ◽  
pp. 1653-1662 ◽  
Author(s):  
T. D. Bayha ◽  
R. J. Kilmer ◽  
F. E. Wawner

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