Direct Laser Cladding of Cobalt on Ti-6Al-4V with a Compositionally Graded InterfaceReportar como inadecuado

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Advances in Materials Science and EngineeringVolume 2011 2011, Article ID 509017, 4 pages

Research ArticleDepartment of Metallurgical and Materials Engineering, Indian Institute of Technology, Kharagpur 721302, India

Received 1 March 2011; Accepted 21 May 2011

Academic Editor: Smurov Igor

Copyright © 2011 Jyotsna Dutta Majumdar. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Direct laser cladding of cobalt on Ti-6Al-4V with and without a graded interface has been attempted using a continuous wave CO2 laser. Graded interface is developed by depositing a thin copper layer on Ti-6Al-4V substrate prior to multiple laser cladding of cobalt on it. Presence of copper interlayer was found to suppress the formation of brittle intermetallics of Ti and Co. The effect of process parameters on the microstructures, compositions, and phases of the interface was studied in details. Finally, the mechanical and electrochemical properties of the interface processed under optimum process parameters are reported.

Autor: Jyotsna Dutta Majumdar



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