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Browsing by Author "Raji, SA"

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In-situ LENS fabricated Ti–Al–Si alloy phase transformation and microstructural evolution after isothermal annealing heat treatments

Author: Raji, SA ; Popoola, API ; Pityana, Sisa L ; Popoola, OM ; Raji, NK ; Tlotleng, Monnamme Date: Feb 2022 Gamma titanium aluminide ( -TiAl) alloys are lightweight materials with potential application for high-temperature components. But their ductility at room temperature impedes widespread production of parts via traditional processing routes. ... Read more
Influence of Mo on microstructure and nanoindentation hardness of Ti-Al-Si-xMo alloy processed by Laser Engineered Net Shaping (LENS)

Author: Raji, SA ; Pityana, Sisa L ; Popoola, API ; Popoola, OM ; Arthur, Nana KK ; Tlotleng, Monnamme Date: Oct 2021 In this work, the microstructure and nanoindentation hardness properties of Ti-Al-Si-xMo alloys produced through laser in-situ alloying using laser engineered net shaping (LENS) technology were investigated. The microstructures and phases ... Read more
Laser micro in situ alloying of c-Ti46.8Al1Cr0.2Si with Manganese

Author: Motha, S ; Lekoadi, Paul ; Raji, SA ; Skhosane, Basebakhe S ; Pityana, Sisa L ; Tlotleng, Monnamme Date: Jun 2022 Titanium alloys have two primary phases (a + ß) that are attributed to the a-stabiliser (aluminium) and ß-stabiliser (niobium). The latter stabilisers shift a-phase to higher temperature while the former stabilisers shift the ß-phase to lower ... Read more
Microstructure and mechanical properties of heat-treated Ti-Al-Si alloy produced via laser in situ alloying

Author: Raji, SA ; Popoola, API ; Pityana, Sisa L ; Monnamme, Tlotleng Date: Mar 2021 Intermetallics based on gamma titanium aluminide ( -TiAl) alloys are potential lightweight materials that can be used for high-temperature components. However, poor room temperature ductility hinders their full potential for producing components ... Read more
Modelling and simulation of the fatigue usage factor of y-TiAl alloy fabricated through Laser Additive Manufacturing (LAM)

Author: Raji, SA ; Popoola, API ; Pityana, Sisa L ; Popoola, OM ; Arthur, Nana KK ; Tlotleng, Monnamme Date: Oct 2021 Recently, laser additive manufacturing (LAM) technologies are increasingly being applied for producing components with excellent physical and mechanical properties in the aerospace, automotive and energy industries. This work is aimed at ... Read more

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Browsing by Author "Raji, SA"

Browsing by Author "Raji, SA"

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