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Browsing by Author "Mostert, RJ"

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Phase transformation and microstructural control of the a-solidifying -Ti-45Al-2Nb-0.7Cr-0.3Si intermetallic alloy

Author: Mathabathe, Maria N ; Govender, Gonasagren ; Bolokang, Amogelang S ; Mostert, RJ ; Siyasiya, CW Date: May 2018 The -Ti-45Al-2Nb-0.7Cr-0.3Si based intermetallic alloy was developed. Microstructure evolution of the as-cast and heat-treated alloy yielded the spheriodised and Widmanstätten laths. High temperature differential thermal analysis (HTDTA) was ... Read more
Phase transformation and microstructural control of the a-solidifying -Ti-45Al-2Nb-0.7Cr-0.3Si intermetallic alloy

Author: Mathabathe, Maria N ; Govender, Gonasagren ; Bolokang, Amogelang S ; Mostert, RJ ; Siyasiya, CW Date: Aug 2018 The -Ti-45Al-2Nb-0.7Cr-0.3Si based intermetallic alloy was developed. Microstructure evolution of the as-cast and heat-treated alloy yielded the spheriodised and Widmanstatten laths. High temperature differential thermal analysis (HTDTA) was ... Read more
Structure-property orientation relationship of a /a2/Ti5Si3 in as-cast Ti-45Al-2Nb-0.7Cr-0.3Si intermetallic alloy

Author: Mathabathe, Maria S ; Bolokang, Amogelang S ; Govender, Gonasagren ; Mostert, RJ ; Siyasiya, CW Date: Oct 2018 Structure-property relationship of the as-cast -Ti-45Al-2Nb-0.7Cr-0.3Si based intermetallic alloy was examined. The phases stable at room temperature in the alloy were /a(sub)2/Ti(sub)5Si(sub)3, respectively; while their crystal structures ... Read more
Surface characterization of the cyclically oxidized -Ti-48Al-2Nb-0.7Cr alloy after nitridation

Author: Mathabathe, Maria N ; Govender, Gonasagren ; Siyasiya, CW ; Mostert, RJ ; Bolokang, Amogelang S Date: Aug 2019 Surface properties of the nitrided -Ti-48Al-2Nb-0.7Cr intermetallic alloy after cyclic oxidation was characterized. The nitride coating was successfully deposited after annealing of the Ti-48Al-2Nb-0.7Cr intermetallic alloy at 900 °C under ... Read more
The vacuum melted y-TiAl (Nb, Cr, Si)-doped alloys and their cyclic oxidation properties

Author: Mathabathe, Maria N ; Bolokang, Amogelang S ; Govender, Gonasagren ; Mostert, RJ ; Siyasiya, CW Date: Aug 2018 The y-TiAl intermetallic alloy doped with Nb, Cr, and Si metals has been developed. It has emerged that the ternary Ti-48Al-2Nb and quinary Ti-48Al-2Nb-0.7Cr-0.3Si alloys yielded the best mechanical and cyclic oxidation properties. In particular, ... Read more

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Browsing by Author "Mostert, RJ"

Browsing by Author "Mostert, RJ"

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