Masina, Bathusile NLengopeng, ThaboPityana, Sisa LTlotleng, Monnamme2019-05-142019-05-142017-11Masina, B.N. et al. 2017. Microstructure and mechanical characterisation of TiAl coated on Ti64. South African Journal of Industrial Engineering, vol. 28(3): 172-1772224-7890DOI: http://dx.doi.org/10.7166/28-3-1854http://sajie.journals.ac.za/pub/article/view/1854http://sajie.journals.ac.za/pub/article/view/1854/811http://hdl.handle.net/10204/10992Copyright: 2017 The authorsIn this study, TiAl alloy was coated on Ti64 using a 1074nm high power continuous-wave laser while varying the laser beam scanning speed. This was done in order to increase the thermo-mechanical properties of Ti64. Scanning electron microscopy (SEM), light optical microscopy, and Vickers’ micro-hardness were used to characterise the clad for macrostructure, composition, and hardness respectively. The macro- and micrographs of the clads indicated a needle- and dendritic-rich structure for the clads and widmanstatten structure at the interface for all the scanning speeds. The overall hardness was found to be high at low scanning speed.enTiAl alloysMicrostructure and mechanical characterisation of TiAl coated on Ti64ArticleMasina, B. N., Lengopeng, T., Pityana, S. L., & Tlotleng, M. (2017). Microstructure and mechanical characterisation of TiAl coated on Ti64. http://hdl.handle.net/10204/10992Masina, Bathusile N, Thabo Lengopeng, Sisa L Pityana, and Monnamme Tlotleng "Microstructure and mechanical characterisation of TiAl coated on Ti64." (2017) http://hdl.handle.net/10204/10992Masina BN, Lengopeng T, Pityana SL, Tlotleng M. Microstructure and mechanical characterisation of TiAl coated on Ti64. 2017; http://hdl.handle.net/10204/10992.TY - Article AU - Masina, Bathusile N AU - Lengopeng, Thabo AU - Pityana, Sisa L AU - Tlotleng, Monnamme AB - In this study, TiAl alloy was coated on Ti64 using a 1074nm high power continuous-wave laser while varying the laser beam scanning speed. This was done in order to increase the thermo-mechanical properties of Ti64. Scanning electron microscopy (SEM), light optical microscopy, and Vickers’ micro-hardness were used to characterise the clad for macrostructure, composition, and hardness respectively. The macro- and micrographs of the clads indicated a needle- and dendritic-rich structure for the clads and widmanstatten structure at the interface for all the scanning speeds. The overall hardness was found to be high at low scanning speed. DA - 2017-11 DB - ResearchSpace DP - CSIR KW - TiAl alloys LK - https://researchspace.csir.co.za PY - 2017 SM - 2224-7890 T1 - Microstructure and mechanical characterisation of TiAl coated on Ti64 TI - Microstructure and mechanical characterisation of TiAl coated on Ti64 UR - http://hdl.handle.net/10204/10992 ER -