Tribological Behavior of Additive Manufactured γ-TiAl by Electron Beam Melting

Abstract

The present work investigated the dry sliding wear behavior of gamma titanium aluminide (γ-TiAl) alloy deposited by electron beam melting (EBM) additive manufacturing technique. The wear-testing parameters used are applied load and sliding velocity, with a constant sliding distance. The wear behavior of commercially available Ti–6Al–4V and Inconel 718 was also investigated for the comparative purpose. Results revealed that EBM-additive-manufactured γ-TiAl showed superior metallurgical bonding within the consecutive layers and formation of phases like γ, α2, and β which improved the microhardness and wear resistance compared with conventionally fabricated Ti–6Al–4V and Inconel 718, and EBM-additive-manufactured γ-TiAl showed higher wear resistance.

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Correspondence to Muthukannan Duraiselvam.

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Pradeep, G.V.K., Duraiselvam, M., Prasad, K.S. et al. Tribological Behavior of Additive Manufactured γ-TiAl by Electron Beam Melting. Trans Indian Inst Met 73, 1661–1667 (2020). https://doi.org/10.1007/s12666-020-01950-8

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Keywords

  • Additive manufacturing
  • Electron beam melting
  • γ-TiAl
  • Ti–6Al–4V
  • Inconel 718
  • Wear