Microstructural evolution and mechanical characterizations of AL-TiC matrix composites produced via friction stir
- Abegunde, Olayinka O., Akinlabi, Esther Titilayo, Madyira, Daniel M.
- Authors: Abegunde, Olayinka O. , Akinlabi, Esther Titilayo , Madyira, Daniel M.
- Date: 2017
- Subjects: Friction stir welding , Metal matrix composite , Aluminium
- Language: English
- Type: Article
- Identifier: http://hdl.handle.net/10210/236151 , uj:24161 , Citation: Abegunde, O.O., Akinlabi, E.T. & Madyira, D.M. 2017. Microstructural evolution and mechanical characterizations of AL-TiC matrix composites produced via friction stir.
- Description: Abstract: In this research work, ample study was conducted on the material characterization of aluminium (Al) and titanium carbide (TiC) metal matrix composites produced via friction stir welding. Different process parameters were employed for the welding process. Rotational speeds of 1600 rpm to 2000 rpm at an interval of 200 rpm and traverse speeds of 100 to 300 mm/min at an interval of 100 mm/min were employed for the welding conducted on an Intelligent Stir Welding for Industry and Research (I-STIR) Process Development System (PDS) platform. The characterizations carried out include optical microscopy and the scanning electron microscopy analyses combined with Energy Dispersive Spectroscopy (SEM/EDS) techniques to investigate the particle distribution, microstructural evolution and the chemical analysis of the welded samples. Vickers microhardness tests were used to determine the hardness distribution of the welded zone and tensile testing was conducted to quantify the strength of the welded area to the base metal in order to establish the optimal process parameters. Based on the results obtained from the characterization analysis, it was found that the process parameters played a major role in the microstructural evolution. Homogenous distribution of the TiC particles was observed at high rotational speed of 2000 rpm and low traverse speed of 100 mm/min. The highest hardness value was measured at the stir zone of the weld due to the presence of the TiC reinforcement particles. The tensile strength also increased as the rotational speed increased and 92% joint efficiency was recorded in a sample produced at 2000 rpm and 100 mm/min. The EDS analysis revealed that Al, Ti and C made up the composition formed at the stir zone. The optimum process parameter setting was found to be at 2000 rpm and 100 mm/min and can be recommended.
- Full Text:
- Authors: Abegunde, Olayinka O. , Akinlabi, Esther Titilayo , Madyira, Daniel M.
- Date: 2017
- Subjects: Friction stir welding , Metal matrix composite , Aluminium
- Language: English
- Type: Article
- Identifier: http://hdl.handle.net/10210/236151 , uj:24161 , Citation: Abegunde, O.O., Akinlabi, E.T. & Madyira, D.M. 2017. Microstructural evolution and mechanical characterizations of AL-TiC matrix composites produced via friction stir.
- Description: Abstract: In this research work, ample study was conducted on the material characterization of aluminium (Al) and titanium carbide (TiC) metal matrix composites produced via friction stir welding. Different process parameters were employed for the welding process. Rotational speeds of 1600 rpm to 2000 rpm at an interval of 200 rpm and traverse speeds of 100 to 300 mm/min at an interval of 100 mm/min were employed for the welding conducted on an Intelligent Stir Welding for Industry and Research (I-STIR) Process Development System (PDS) platform. The characterizations carried out include optical microscopy and the scanning electron microscopy analyses combined with Energy Dispersive Spectroscopy (SEM/EDS) techniques to investigate the particle distribution, microstructural evolution and the chemical analysis of the welded samples. Vickers microhardness tests were used to determine the hardness distribution of the welded zone and tensile testing was conducted to quantify the strength of the welded area to the base metal in order to establish the optimal process parameters. Based on the results obtained from the characterization analysis, it was found that the process parameters played a major role in the microstructural evolution. Homogenous distribution of the TiC particles was observed at high rotational speed of 2000 rpm and low traverse speed of 100 mm/min. The highest hardness value was measured at the stir zone of the weld due to the presence of the TiC reinforcement particles. The tensile strength also increased as the rotational speed increased and 92% joint efficiency was recorded in a sample produced at 2000 rpm and 100 mm/min. The EDS analysis revealed that Al, Ti and C made up the composition formed at the stir zone. The optimum process parameter setting was found to be at 2000 rpm and 100 mm/min and can be recommended.
- Full Text:
Force feedback analysis: friction stir welding of aluminium metal matrix composite
- Abegunde, Olayinka O., Akinlabi, Esther Titilayo, Madyira, Daniel M.
- Authors: Abegunde, Olayinka O. , Akinlabi, Esther Titilayo , Madyira, Daniel M.
- Date: 2016
- Subjects: Force feedback , Friction stir welding , Heat input , Torque
- Language: English
- Type: Conference proceedings
- Identifier: http://hdl.handle.net/10210/93400 , uj:20342 , Citation: Abegunde, O.O., Akinlabi, E.T. & Madyira, D.M. 2016. Force feedback analysis: friction stir welding of aluminium metal matrix composite.
- Description: Abstract: This paper presents the output response parameters (forces feedback, torque and heat input) during friction stir welding of aluminium. The welding was performed on an Intelligent Stir Welding for Industry and Research (ISTIR) Process Development System (PDS) using different rotational and transverse speeds while other input parameters like tool geometry, tilt angle and workpieces configuration were kept constant. The I-STIR FSW platform is capable of recording the force feedback and torque during the welding process and the heat input was calculated using a mathematical relationship. The study reveals the influence of the rotational and transverse speed on the pattern of the output feedback. The reinforcement ceramic particles added to the weld seam during welding also affected the output feedback.
- Full Text:
- Authors: Abegunde, Olayinka O. , Akinlabi, Esther Titilayo , Madyira, Daniel M.
- Date: 2016
- Subjects: Force feedback , Friction stir welding , Heat input , Torque
- Language: English
- Type: Conference proceedings
- Identifier: http://hdl.handle.net/10210/93400 , uj:20342 , Citation: Abegunde, O.O., Akinlabi, E.T. & Madyira, D.M. 2016. Force feedback analysis: friction stir welding of aluminium metal matrix composite.
- Description: Abstract: This paper presents the output response parameters (forces feedback, torque and heat input) during friction stir welding of aluminium. The welding was performed on an Intelligent Stir Welding for Industry and Research (ISTIR) Process Development System (PDS) using different rotational and transverse speeds while other input parameters like tool geometry, tilt angle and workpieces configuration were kept constant. The I-STIR FSW platform is capable of recording the force feedback and torque during the welding process and the heat input was calculated using a mathematical relationship. The study reveals the influence of the rotational and transverse speed on the pattern of the output feedback. The reinforcement ceramic particles added to the weld seam during welding also affected the output feedback.
- Full Text:
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