Laser Nitriding of Titanium Alloy and Fracture Toughness Measurement of Resulting Surface

O. Al-Mana; M.S.J. Hashmi; Bekir Sami Yilbas

doi:10.4028/www.scientific.net/AMR.445.615

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Laser Nitriding of Titanium Alloy and Fracture Toughness Measurement of Resulting Surface
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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 445Laser Nitriding of Titanium Alloy and Fracture...

Laser Nitriding of Titanium Alloy and Fracture Toughness Measurement of Resulting Surface

Abstract:

In the present study laser nitriding of titanium alloy surface is carried out and fracture toughness of the resulting surface is measured using the micro-indentation method. The fracture toughness is then related to the microstructure of the laser treated surface. It is found that laser gas assisted nitriding lowers the fracture toughness of the surface due to the micro-stress formed at the surface region during the high cooling rates.

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Periodical:

Advanced Materials Research (Volume 445)

Pages:

615-620

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.445.615

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Online since:

January 2012

Authors:

O. Al-Mana, M.S.J. Hashmi, Bekir Sami Yilbas

Keywords:

Laser, Nitriding, PVD Coating, Titanium Alloy

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