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Laser melting of Ti-15Al-20Nb alloy

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Abstract

Titanium aluminides have become promising materials for high-temperature applications, but the relatively poor oxidation resistance and elevated- temperature strength of these alloys limit their application to temperatures lower than 1000 °C. Niobium addition improves the properties of titanium aluminide. However, the mechanical, metallurgical, and corrosion properties of Ti- Al- Nb may be improved by treatment with a laser beam. Consequently, the present study examines the properties of Ti- 15Al- 20Nb alloy subjected to the Nd:YAG laser melting process. Hardness in the surface region increases to twice the base material hardness, and corrosion resistance improves considerably after laser treatment.

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Authors and Affiliations

  1. Department of Mechanical Engineering, King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia

    B.S Yilbas & M Sami

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  1. B.S Yilbas
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  2. M Sami
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Yilbas, B., Sami, M. Laser melting of Ti-15Al-20Nb alloy. JMEP 5, 124–128 (1996). https://doi.org/10.1007/BF02647280

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  • DOI: https://doi.org/10.1007/BF02647280

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