scholarly journals Advanced Deep Learning‐Based 3D Microstructural Characterization of Multiphase Metal Matrix Composites

2020 ◽  
Vol 22 (4) ◽  
pp. 1901197 ◽  
Author(s):  
Sergei Evsevleev ◽  
Sidnei Paciornik ◽  
Giovanni Bruno
2014 ◽  
Vol 984-985 ◽  
pp. 280-284 ◽  
Author(s):  
S.A. Kori ◽  
S.L. Biradar ◽  
Virupaxi Auradi

Current work, aims at preparation and characterization of Al-Al3Ti in-situ metal matrix composites with varying percentage of in-situ Al3Ti (3 and 5%) reinforcement. The composites were prepared by the salt route involving reaction of commercial purity aluminum (99.7%) and potassium titanium flourate halide (K2TiF6) salt at a reaction temperature of 800°C and with 60min. holding time. The prepared composites were subjected to microstructural studies using Scanning Electron Microscope. Further, the work aims at evaluating mechanical properties of the prepared composites as per ASTM standards. Microstructural characterization using SEM revealed blocky morphology of Al3Ti intermetallics with fairly homogeneous distribution. Insitu Al-Al3Ti composites have shown better mechanical properties when compared to the unreinforced Al matrix.


2009 ◽  
Vol 518 (1-2) ◽  
pp. 118-123 ◽  
Author(s):  
F. Scherm ◽  
R. Völkl ◽  
S. van Smaalen ◽  
S. Mondal ◽  
P. Plamondon ◽  
...  

2019 ◽  
Vol 895 ◽  
pp. 115-121
Author(s):  
C. Honnaiah ◽  
M.S. Ashok Kumar ◽  
M.S. Srinath ◽  
S.L. Ajit Prasad

Aluminium Metal Matrix composites (AMC) are known to be very promising light weight materials with enhanced mechanical properties which are used in various industries [1]. Aluminium metal–matrix composites reinforced with SiC and Al2O3 are used in automotive and aerospace applications due to reduction in weight and increase the engine efficiency and thereby reducing fuel consumption [2]. Replacing cast iron engine components with light-weight Al alloys requires overcoming of the poor adhesion and seizure resistance of Aluminium achieved by dispersing SiC, Al2O3 or graphite particles in aluminium, Considerable reduction in wear and friction can be achieved by the use of these reinforcement particulate [3].


2014 ◽  
Vol 592-594 ◽  
pp. 494-498 ◽  
Author(s):  
V. Auradi ◽  
S.L. Biradar ◽  
S.M. Suresha ◽  
S.A. Kori

In the present work, Al-TiB2in-situ metal matrix composites were processed via master alloy route at 800°C-30 min. with 5 and 7wt% of TiB2particles. Microstructural characterization of the prepared insitu composites were carried out using XRD, SEM/EDX studies. X ray diffraction studies have shown the presence of Al3Ti and TiB2phases, however, the presence of AlB2particles is also highly likely. SEM/EDX characterization revealed fairly uniformly distributed TiB2particles having hexagonal morphology with size distribution in the ranges between 0.5-10μm. Further, presence of TiB2particles in Al matrix have resulted in improvement in hardness and tensile properties of the Al matrix while decrease in ductility was observed.


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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