Influence of SiC particles distribution on mechanical properties and fracture of DRA alloys
Abstract
In the last 20 years a new class of metal matrix composite material (DRA - Discontinuously Reinforced Aluminum) with aluminum alloy matrix and Sic particles as secondary phase has been developed. The most important step during composite production is the homogenization process of metal and ceramic powder particles. Quantitative analysis of a SiC particles distribution in the aluminum alloy matrix (CW67) was used to determine the optimum homogenization parameters of different powders. It was found out that the level of mixture homogeneity largely depends on the amount of mixing dish filling, homogenization time and characteristics of reinforcing particles. By introducing the concept of homogeneity index, it was shown that the lowest values of the mentioned parameter correspond to the best uniformity of Sic particles in the CW67 matrix. Composite with the lowest value of homogeneity index was the one with 5 vol.% of SiC, homogenized during 60 min and the amount of mixing dish filling of ...20 vol.%. This composite displayed the best values of mechanical properties and fracture resistance. (C) 2009 Elsevier Ltd. All rights reserved.
Keywords:
DRA materials / SiC-particles / Quantitative microscopy / Diffusion mixing / Mechanical properties / FractographySource:
Materials and Design, 2010, 31, 1, 134-141Funding / projects:
- Sinteza i osobine nanostrukturnih metalnih, intermetalnih i kompozitnih materijala (RS-MESTD-MPN2006-2010-142027)
DOI: 10.1016/j.matdes.2009.06.047
ISSN: 0261-3069
WoS: 000270632800017
Scopus: 2-s2.0-69849107723
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Institution/Community
VinčaTY - JOUR AU - Božić, Dušan AU - Dimčić, Biljana AU - Dimcic, O. AU - Stašić, Jelena AU - Rajković, Višeslava M. PY - 2010 UR - https://vinar.vin.bg.ac.rs/handle/123456789/3255 AB - In the last 20 years a new class of metal matrix composite material (DRA - Discontinuously Reinforced Aluminum) with aluminum alloy matrix and Sic particles as secondary phase has been developed. The most important step during composite production is the homogenization process of metal and ceramic powder particles. Quantitative analysis of a SiC particles distribution in the aluminum alloy matrix (CW67) was used to determine the optimum homogenization parameters of different powders. It was found out that the level of mixture homogeneity largely depends on the amount of mixing dish filling, homogenization time and characteristics of reinforcing particles. By introducing the concept of homogeneity index, it was shown that the lowest values of the mentioned parameter correspond to the best uniformity of Sic particles in the CW67 matrix. Composite with the lowest value of homogeneity index was the one with 5 vol.% of SiC, homogenized during 60 min and the amount of mixing dish filling of 20 vol.%. This composite displayed the best values of mechanical properties and fracture resistance. (C) 2009 Elsevier Ltd. All rights reserved. T2 - Materials and Design T1 - Influence of SiC particles distribution on mechanical properties and fracture of DRA alloys VL - 31 IS - 1 SP - 134 EP - 141 DO - 10.1016/j.matdes.2009.06.047 ER -
@article{ author = "Božić, Dušan and Dimčić, Biljana and Dimcic, O. and Stašić, Jelena and Rajković, Višeslava M.", year = "2010", abstract = "In the last 20 years a new class of metal matrix composite material (DRA - Discontinuously Reinforced Aluminum) with aluminum alloy matrix and Sic particles as secondary phase has been developed. The most important step during composite production is the homogenization process of metal and ceramic powder particles. Quantitative analysis of a SiC particles distribution in the aluminum alloy matrix (CW67) was used to determine the optimum homogenization parameters of different powders. It was found out that the level of mixture homogeneity largely depends on the amount of mixing dish filling, homogenization time and characteristics of reinforcing particles. By introducing the concept of homogeneity index, it was shown that the lowest values of the mentioned parameter correspond to the best uniformity of Sic particles in the CW67 matrix. Composite with the lowest value of homogeneity index was the one with 5 vol.% of SiC, homogenized during 60 min and the amount of mixing dish filling of 20 vol.%. This composite displayed the best values of mechanical properties and fracture resistance. (C) 2009 Elsevier Ltd. All rights reserved.", journal = "Materials and Design", title = "Influence of SiC particles distribution on mechanical properties and fracture of DRA alloys", volume = "31", number = "1", pages = "134-141", doi = "10.1016/j.matdes.2009.06.047" }
Božić, D., Dimčić, B., Dimcic, O., Stašić, J.,& Rajković, V. M.. (2010). Influence of SiC particles distribution on mechanical properties and fracture of DRA alloys. in Materials and Design, 31(1), 134-141. https://doi.org/10.1016/j.matdes.2009.06.047
Božić D, Dimčić B, Dimcic O, Stašić J, Rajković VM. Influence of SiC particles distribution on mechanical properties and fracture of DRA alloys. in Materials and Design. 2010;31(1):134-141. doi:10.1016/j.matdes.2009.06.047 .
Božić, Dušan, Dimčić, Biljana, Dimcic, O., Stašić, Jelena, Rajković, Višeslava M., "Influence of SiC particles distribution on mechanical properties and fracture of DRA alloys" in Materials and Design, 31, no. 1 (2010):134-141, https://doi.org/10.1016/j.matdes.2009.06.047 . .