Dry sliding wear behavior of in-situ frabicated TiC particulate reinforced AA6061 aluminium alloy
- Selvam, J David Raja, Dinaharan, Isaac, Rai, Rajkumar S., Mashinini, P. M.
- Authors: Selvam, J David Raja , Dinaharan, Isaac , Rai, Rajkumar S. , Mashinini, P. M.
- Date: 2019
- Subjects: FESEM , XRD , EBSD
- Language: English
- Type: Article
- Identifier: http://hdl.handle.net/10210/398915 , uj:33230 , Citation: J. David Raja Selvam, I. Dinaharan, Rajakumar S. Rai & P. M. Mashinini (2019) Dry sliding wear behaviour of in-situ fabricated TiC particulate reinforced AA6061 aluminium alloy, Tribology - Materials, Surfaces & Interfaces, 13:1, 1-11, DOI: 10.1080/17515831.2018.1550971
- Description: Abstract: Aluminium alloy AA6061 reinforced with different mass fractions of (0, 2.5, 5, 7.5 & 10 weight percentage) TiC particles was fabricated by the in-situ reaction process. The in-situ synthesized aluminium matrix composite (AMCs) were examined using X-ray diffraction, field emission scanning electron microscope and electron backscatter diffraction. The results from the aforesaid tests revealed the formation of TiC particles. The in-situ formed particles were found to have a homogenous distribution, clear bonding and good interface with the aluminium alloy AA6061. The dry sliding wear test results revealed an improvement in wear performance of aluminium alloy AA6061 due to the presence of TiC particulate. Furthermore, the in-situ formed TiC particulates refined the grain structure. The in-situ formed TiC particles improved the load bearing ability of the AMCs. The wear mechanisms recorded during the wear test were ploughing and adhesion at lower load and delamination at higher load.
- Full Text:
- Authors: Selvam, J David Raja , Dinaharan, Isaac , Rai, Rajkumar S. , Mashinini, P. M.
- Date: 2019
- Subjects: FESEM , XRD , EBSD
- Language: English
- Type: Article
- Identifier: http://hdl.handle.net/10210/398915 , uj:33230 , Citation: J. David Raja Selvam, I. Dinaharan, Rajakumar S. Rai & P. M. Mashinini (2019) Dry sliding wear behaviour of in-situ fabricated TiC particulate reinforced AA6061 aluminium alloy, Tribology - Materials, Surfaces & Interfaces, 13:1, 1-11, DOI: 10.1080/17515831.2018.1550971
- Description: Abstract: Aluminium alloy AA6061 reinforced with different mass fractions of (0, 2.5, 5, 7.5 & 10 weight percentage) TiC particles was fabricated by the in-situ reaction process. The in-situ synthesized aluminium matrix composite (AMCs) were examined using X-ray diffraction, field emission scanning electron microscope and electron backscatter diffraction. The results from the aforesaid tests revealed the formation of TiC particles. The in-situ formed particles were found to have a homogenous distribution, clear bonding and good interface with the aluminium alloy AA6061. The dry sliding wear test results revealed an improvement in wear performance of aluminium alloy AA6061 due to the presence of TiC particulate. Furthermore, the in-situ formed TiC particulates refined the grain structure. The in-situ formed TiC particles improved the load bearing ability of the AMCs. The wear mechanisms recorded during the wear test were ploughing and adhesion at lower load and delamination at higher load.
- Full Text:
Developing a friction-stir welding window for joining the dissimilar aluminum alloys AA6351 and AA5083
- Palanivel, Ramaswamy, Laubscher, Rudolf Frans, Dinaharan, Isaac, Murugan, Nadarajan
- Authors: Palanivel, Ramaswamy , Laubscher, Rudolf Frans , Dinaharan, Isaac , Murugan, Nadarajan
- Date: 2017
- Subjects: Friction stir welding , Dissimilar joints , Welding window
- Language: English
- Type: Article
- Identifier: http://hdl.handle.net/10210/245024 , uj:25350 , Citation: Palanivel, R. et al. 2017. Developing a friction-stir welding window for joining the dissimilar aluminum alloys AA6351 and AA5083. Materials and technology, 51(1):5–9. , ISSN: 1580-2949
- Description: Abstract: In this study a welding window was constructed for the relatively new welding process of friction-stir welding (FSW) to join the 6-mm-thick dissimilar aluminium alloys AA5083-H111 and AA6351-T6. The dissimilar joints were fabricated using different combinations of tool rotational speeds and welding speeds. The effect of the process parameters on the macrostructure of the joints was analysed and reported. Established along with the macrostructural analysis, a welding window was made. These windows will act as reference maps for selecting the appropriate FSW process parameters to produce defect-free welds of dissimilar aluminium alloys.
- Full Text:
- Authors: Palanivel, Ramaswamy , Laubscher, Rudolf Frans , Dinaharan, Isaac , Murugan, Nadarajan
- Date: 2017
- Subjects: Friction stir welding , Dissimilar joints , Welding window
- Language: English
- Type: Article
- Identifier: http://hdl.handle.net/10210/245024 , uj:25350 , Citation: Palanivel, R. et al. 2017. Developing a friction-stir welding window for joining the dissimilar aluminum alloys AA6351 and AA5083. Materials and technology, 51(1):5–9. , ISSN: 1580-2949
- Description: Abstract: In this study a welding window was constructed for the relatively new welding process of friction-stir welding (FSW) to join the 6-mm-thick dissimilar aluminium alloys AA5083-H111 and AA6351-T6. The dissimilar joints were fabricated using different combinations of tool rotational speeds and welding speeds. The effect of the process parameters on the macrostructure of the joints was analysed and reported. Established along with the macrostructural analysis, a welding window was made. These windows will act as reference maps for selecting the appropriate FSW process parameters to produce defect-free welds of dissimilar aluminium alloys.
- Full Text:
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