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Author Mondal, Manas Kumar ♦ Biswas, Koushik ♦ Maity, Joydeep
Source SpringerLink
Content type Text
Publisher Springer US
File Format PDF
Copyright Year ©2013
Language English
Subject Domain (in DDC) Technology ♦ Engineering & allied operations
Subject Keyword composite ♦ ductility ♦ engulfment ♦ grain refinement ♦ in situ Al$_{4}$SiC$_{4}$ ♦ strength ♦ Characterization and Evaluation of Materials ♦ Tribology, Corrosion and Coatings ♦ Quality Control, Reliability, Safety and Risk ♦ Engineering Design
Abstract In this research work 6351 Al-Al$_{4}$SiC$_{4}$ composite has been developed through stir casting route with incorporation of fine TiC powder in 6351 Al melt. During stir casting, round shaped Al$_{4}$SiC$_{4}$ particles were generated as TiC reacted with molten aluminum. These Al$_{4}$SiC$_{4}$ particles were found to be acting as nucleation sites for primary α (causing grain refinement) along with engulfment effects promoting particle distribution without clustering. Furthermore, as the volume fraction of Al$_{4}$SiC$_{4}$ particles increased, the proportion of dendritic region decreased (more equiaxed grains appeared) and the overall grain size of the matrix decreased. This resulted in an improved strength and ductility of the composite. Equations were developed with a reasonable accuracy correlating the strength with microstructural parameters. An excellent combination of strength (UTS = 215 MPa) and ductility (%Elongation = 10) was obtained for 6351 Al-7 vol.% Al$_{4}$SiC$_{4}$ composite as compared to base cast 6351 Al alloy (UTS = 121 MPa, %Elongation = 3).
ISSN 10599495
Age Range 18 to 22 years ♦ above 22 year
Educational Use Research
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2013-07-20
Publisher Place Boston
e-ISSN 15441024
Journal Journal of Materials Engineering and Performance
Volume Number 22
Issue Number 11
Page Count 12
Starting Page 3364
Ending Page 3375

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Source: SpringerLink