The vacuum melted y-TiAl (Nb, Cr, Si)-doped alloys and their cyclic oxidation properties

Mathabathe, Maria NBolokang, Amogelang SGovender, GonasagrenMostert, RJSiyasiya, CW2018-07-112018-07-112018-08Mathabathe, M.N. et al. 2018. The vacuum melted y-TiAl (Nb, Cr, Si)-doped alloys and their cyclic oxidation properties. Vacuum, vol. 154: 82-890042-207Xhttps://www.sciencedirect.com/science/article/pii/S0042207X18305633doi.org/10.1016/j.vacuum.2018.04.055http://hdl.handle.net/10204/10301© 2018 Elsevier Ltd. Due to copyright restrictions, the attached PDF file only contains the abstract of the full text item. For access to the full text item, please consult the publisher's website.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, the quinary Ti-48Al-2Nb-0.7Cr-0.3Si alloy rapidly developed the protective stable Al(sub2)O(sub3) oxide doped with nitrogen and titanium oxynitride during cyclic oxidation. This showed a lower hardness when compared to the other alloys after cyclic oxidation. The oxide layer proved to have a good adhesive relationship with the parent metal. The alloys microstructures were analysed with the scanning electron microscopy (SEM). The sample hardness test were conducted by Vickers hardness tester.enTi-48Al-2Nb-0.7Cr-0.3Si alloyTi-48Al-2Nb alloyVacuum meltedCyclic oxidationOxynitridesThe vacuum melted y-TiAl (Nb, Cr, Si)-doped alloys and their cyclic oxidation propertiesArticleMathabathe, M. N., Bolokang, A. S., Govender, G., Mostert, R., & Siyasiya, C. (2018). The vacuum melted y-TiAl (Nb, Cr, Si)-doped alloys and their cyclic oxidation properties. http://hdl.handle.net/10204/10301Mathabathe, Maria N, Amogelang S Bolokang, Gonasagren Govender, RJ Mostert, and CW Siyasiya "The vacuum melted y-TiAl (Nb, Cr, Si)-doped alloys and their cyclic oxidation properties." (2018) http://hdl.handle.net/10204/10301Mathabathe MN, Bolokang AS, Govender G, Mostert R, Siyasiya C. The vacuum melted y-TiAl (Nb, Cr, Si)-doped alloys and their cyclic oxidation properties. 2018; http://hdl.handle.net/10204/10301.TY - Article AU - Mathabathe, Maria N AU - Bolokang, Amogelang S AU - Govender, Gonasagren AU - Mostert, RJ AU - Siyasiya, CW AB - 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, the quinary Ti-48Al-2Nb-0.7Cr-0.3Si alloy rapidly developed the protective stable Al(sub2)O(sub3) oxide doped with nitrogen and titanium oxynitride during cyclic oxidation. This showed a lower hardness when compared to the other alloys after cyclic oxidation. The oxide layer proved to have a good adhesive relationship with the parent metal. The alloys microstructures were analysed with the scanning electron microscopy (SEM). The sample hardness test were conducted by Vickers hardness tester. DA - 2018-08 DB - ResearchSpace DP - CSIR KW - Ti-48Al-2Nb-0.7Cr-0.3Si alloy KW - Ti-48Al-2Nb alloy KW - Vacuum melted KW - Cyclic oxidation KW - Oxynitrides LK - https://researchspace.csir.co.za PY - 2018 SM - 0042-207X T1 - The vacuum melted y-TiAl (Nb, Cr, Si)-doped alloys and their cyclic oxidation properties TI - The vacuum melted y-TiAl (Nb, Cr, Si)-doped alloys and their cyclic oxidation properties UR - http://hdl.handle.net/10204/10301 ER -