Journal of Surface Science and Technology

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Surface Modification of Titanium-Titanium Boride (Ti-TiB) Composite Using Low Traverse Speed Laser Beam


Affiliations
1 Dr. Mahalingam College of Engg. and Tech., Pollachi 642 003, Tamilnadu, India
2 P.S.G. College of Technology, Coimbatore 641 004, Tamilnadu, India
3 Sri Krishna College of Engineering, Coimbatore 641 008, Tamilnadu, India
     

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The Titanium-Titanium boride (Ti-TiB) composite was subjected to surface modification using laser surface treatment. A significant increase in surface hardness to 980 VHN, relative to 513 VHN for the untreated material occurred with a laser energy input of about 30 kJ/m, achieved with 20 and 30 mm/s traverse speed. This increase in hardness corresponds to increase in surface volume fraction of TiB whiskers to about 65 % at about 30 kJ/m and above.

Keywords

Laser Treatment, Metal Matrix Composites, X-Ray Diffraction and Scanning Electron Microscopy.
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  • Surface Modification of Titanium-Titanium Boride (Ti-TiB) Composite Using Low Traverse Speed Laser Beam

Abstract Views: 221  |  PDF Views: 2

Authors

P. Chandrasekar
Dr. Mahalingam College of Engg. and Tech., Pollachi 642 003, Tamilnadu, India
Sriram
Dr. Mahalingam College of Engg. and Tech., Pollachi 642 003, Tamilnadu, India
Santhosh
Dr. Mahalingam College of Engg. and Tech., Pollachi 642 003, Tamilnadu, India
V. Balusamy
P.S.G. College of Technology, Coimbatore 641 004, Tamilnadu, India
P. Chandramohan
Sri Krishna College of Engineering, Coimbatore 641 008, Tamilnadu, India

Abstract


The Titanium-Titanium boride (Ti-TiB) composite was subjected to surface modification using laser surface treatment. A significant increase in surface hardness to 980 VHN, relative to 513 VHN for the untreated material occurred with a laser energy input of about 30 kJ/m, achieved with 20 and 30 mm/s traverse speed. This increase in hardness corresponds to increase in surface volume fraction of TiB whiskers to about 65 % at about 30 kJ/m and above.

Keywords


Laser Treatment, Metal Matrix Composites, X-Ray Diffraction and Scanning Electron Microscopy.