Microstructure and mechanical characterization of aa6061/tic in situ aluminium matrix composites synthesized by in situ reaction of silicon carbide and potassium fluotitanate
- Lijay, K. Jeshurun, Selvam, J. David Raja, Dinaharan, I., Vijay, S. J.
- Authors: Lijay, K. Jeshurun , Selvam, J. David Raja , Dinaharan, I. , Vijay, S. J.
- Date: 2016
- Subjects: Aluminum matrix composite , Titanium carbide , Electron back scatter diagram , Casting
- Language: English
- Type: Conference Proceedings
- Identifier: http://hdl.handle.net/10210/93786 , uj:20391 , Citation: Lijay, K.J. et al. 2016. Microstructure and mechanical characterization of aa6061/tic in situ aluminium matrix composites synthesized by in situ reaction of silicon carbide and potassium fluotitanate.
- Description: Abstract: In situ method of synthesizing aluminum matrix composites (AMCs) has been widely recognized and followed by researchers due to numerous merits over conventional stir casting. Aluminum alloy AA6061 reinforced with various amounts (0, 2.5 and 5 wt. %) of TiC particles were synthesized by the in situ reaction of inorganic salt K2TiF6 and ceramic particle SiC with molten aluminum. The casting was carried out at an elevated temperature and held for a longer duration to decompose SiC to release carbon atoms. X-ray diffraction patterns of the prepared AMCs clearly revealed the formation of TiC particles without the occurrence of any other intermetallic compounds. The microstructure of the prepared AA6061/TiC AMCs was studied using field emission scanning electron microscope…
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- Authors: Lijay, K. Jeshurun , Selvam, J. David Raja , Dinaharan, I. , Vijay, S. J.
- Date: 2016
- Subjects: Aluminum matrix composite , Titanium carbide , Electron back scatter diagram , Casting
- Language: English
- Type: Conference Proceedings
- Identifier: http://hdl.handle.net/10210/93786 , uj:20391 , Citation: Lijay, K.J. et al. 2016. Microstructure and mechanical characterization of aa6061/tic in situ aluminium matrix composites synthesized by in situ reaction of silicon carbide and potassium fluotitanate.
- Description: Abstract: In situ method of synthesizing aluminum matrix composites (AMCs) has been widely recognized and followed by researchers due to numerous merits over conventional stir casting. Aluminum alloy AA6061 reinforced with various amounts (0, 2.5 and 5 wt. %) of TiC particles were synthesized by the in situ reaction of inorganic salt K2TiF6 and ceramic particle SiC with molten aluminum. The casting was carried out at an elevated temperature and held for a longer duration to decompose SiC to release carbon atoms. X-ray diffraction patterns of the prepared AMCs clearly revealed the formation of TiC particles without the occurrence of any other intermetallic compounds. The microstructure of the prepared AA6061/TiC AMCs was studied using field emission scanning electron microscope…
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Microstructure and wear characterization of aluminum matrix composites reinforced with industrial waste fly ash particulates synthesized by friction stir processing
- Dinaharan, I., Nelson, R., Vijay, S. J., Akinlabi, Esther Titilayo
- Authors: Dinaharan, I. , Nelson, R. , Vijay, S. J. , Akinlabi, Esther Titilayo
- Date: 2016
- Subjects: Aluminum matrix composites , Friction stir processing , Fly ash , Wear
- Language: English
- Type: Article
- Identifier: http://hdl.handle.net/10210/93234 , uj:20321 , Citation: Dinaharan, I. et al. 2016. Microstructure and wear characterization of aluminum matrix composites reinforced with industrial waste fly ash particulates synthesized by friction stir processing.
- Description: Abstract: Fly ash (FA) is a waste product of coal combustion in thermal power plants which is available in massive quantities all over the world causing land pollution. This paper reports the characterization of AA6061 aluminum matrix composites (AMCs) reinforced with FA particles synthesized using friction stir processing (FSP). The volume fraction of FA particles was varied from 0 to 18 in steps of 6. The prepared AMCs were characterized using optical microscopy (OM), scanning electron microscopy (SEM) and electron backscattered diagram (EBSD). The wear rate was estimated using a pin-on-disc wear apparatus. FA particles were observed to be distributed homogeneously in the AMC irrespective of the location within the stir zone. The EBSD micrographs revealed remarkable grain refinement in the AMC. The 2 incorporation of FA particles enhanced the microhardness and wear resistance of the AMC. The strengthening mechanisms of the AMC were discussed and correlated to the observed microstructures. The wear mechanisms were identified by characterizing the wear debris and worn surfaces.
- Full Text:
- Authors: Dinaharan, I. , Nelson, R. , Vijay, S. J. , Akinlabi, Esther Titilayo
- Date: 2016
- Subjects: Aluminum matrix composites , Friction stir processing , Fly ash , Wear
- Language: English
- Type: Article
- Identifier: http://hdl.handle.net/10210/93234 , uj:20321 , Citation: Dinaharan, I. et al. 2016. Microstructure and wear characterization of aluminum matrix composites reinforced with industrial waste fly ash particulates synthesized by friction stir processing.
- Description: Abstract: Fly ash (FA) is a waste product of coal combustion in thermal power plants which is available in massive quantities all over the world causing land pollution. This paper reports the characterization of AA6061 aluminum matrix composites (AMCs) reinforced with FA particles synthesized using friction stir processing (FSP). The volume fraction of FA particles was varied from 0 to 18 in steps of 6. The prepared AMCs were characterized using optical microscopy (OM), scanning electron microscopy (SEM) and electron backscattered diagram (EBSD). The wear rate was estimated using a pin-on-disc wear apparatus. FA particles were observed to be distributed homogeneously in the AMC irrespective of the location within the stir zone. The EBSD micrographs revealed remarkable grain refinement in the AMC. The 2 incorporation of FA particles enhanced the microhardness and wear resistance of the AMC. The strengthening mechanisms of the AMC were discussed and correlated to the observed microstructures. The wear mechanisms were identified by characterizing the wear debris and worn surfaces.
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