MICROSTRUCTURE AND MECHANICAL CHARACTERISATION OF TIAL COATED ON Ti64

Authors

  • Bathusile Masina Council for Scientific and Industrial Research, National Laser Centre, Laser Enabled Manufacturing, Pretoria, South Africa
  • Thabo Lengopeng Council for Scientific and Industrial Research, National Laser Centre, Laser Enabled Manufacturing, Pretoria, South Africa
  • Sisa Pityana Council for Scientific and Industrial Research, National Laser Centre, Laser Enabled Manufacturing, Pretoria, South Africa Department of Chemical, Metallurgical and Materials Engineering, Tshwane University of Technology, South Africa
  • Monnamme Tlotleng Council for Scientific and Industrial Research, National Laser Centre, Laser Enabled Manufacturing, Pretoria, South Africa Department of Mechanical Engineering Science, University of Johannesburg, South Africa

DOI:

https://doi.org/10.7166/28-3-1854

Abstract

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.

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Published

2017-11-22

How to Cite

Masina, B., Lengopeng, T., Pityana, S., & Tlotleng, M. (2017). MICROSTRUCTURE AND MECHANICAL CHARACTERISATION OF TIAL COATED ON Ti64. The South African Journal of Industrial Engineering, 28(3), 172–177. https://doi.org/10.7166/28-3-1854

Issue

Vol. 28 No. 3 (2017)

Section

General Articles

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