Microstructure and Tribological Properties of Aluminum Matrix Composite

2015 ◽  
Vol 641 ◽  
pp. 30-38 ◽  
Author(s):  
Magdalena Suśniak ◽  
Joanna Karwan-Baczewska ◽  
Iwona Sulima

AlSi5Cu2 alloy matrix composite have been studied by microscopic examination and basic tribological properties was evaluated. Composite material was produced by the mechanical milling and spark plasma sintering technique. After sintering process SiC particles were uniformly distributed in the matrix. The wear and the friction coefficients were determinate as a function of the SiC volume fraction. The addition of SiC wt. % had significant effect on tribological properties of that composites. The increase in reinforcement content improves the wear resistance of obtained materials.

2016 ◽  
Vol 688 ◽  
pp. 527-533 ◽  
Author(s):  
Ehsan Ghasali ◽  
Amir Hossein Pakseresht ◽  
Masoud Alizadeh ◽  
Kamyar Shirvanimoghaddam ◽  
Touradj Ebadzadeh

2018 ◽  
Vol 18 (4) ◽  
pp. 1042-1054 ◽  
Author(s):  
Ehsan Ghasali ◽  
Parvaneh Sangpour ◽  
Alireza Jam ◽  
Hosein Rajaei ◽  
Kamyar Shirvanimoghaddam ◽  
...  

Metals ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. 1266
Author(s):  
Yong Guk Son ◽  
Young Cheol Lee ◽  
Sung Su Jung ◽  
Han Sang Kwon ◽  
Wookjin Lee ◽  
...  

The effect of sintering process on the microstructure and the mechanical properties of aluminum syntactic foam were investigated in this study. Two different sintering processes of spark plasma sintering and hot pressing were used. Glass hollow spheres with a size of 50–80 μm was used to fabricate the foams having various volume fractions of the spheres in the range of 10–30%. Microstructural analysis revealed that the glass hollow spheres were uniformly distributed in the aluminum matrix, both in the spark plasma sintered and hot pressed ones. As the volume fraction of the spheres increased from 10 to 30%, the density, micro-hardness and compressive strength of the foams were decreased. In comparison to the foams fabricated by hot pressing method, the spark plasma sintered foams had slightly lower density and mechanical strength. In nanoindentation study, it was found that the aluminum matrix in the foam prepared by the spark plasma sintering process had lower strength than foam prepared by the hot pressing process. This is likely because of shorter sintering time used in the spark plasma sintering process than the hot pressing.


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