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Synthesis and Characterization of NiCoFeCrAl3 High Entropy Alloy Coating by Laser Cladding

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Abstract:

The NiCoFeCrAl3 high entropy alloy coating with a little addition of C, Si, Mn, Mo has been succesively synthesized by laser cladding. The results show that simple solution phases of ordered BCC and a small fraction of FCC are obtained with fine equaixed dendrites morphology. Because the fine grain strengthening obtained by rapid solidification and the additived small atomic elements like C, Si further increase the distortion of the solid solution lattice, The microhardness of the coating reached above 800 HV and is 50 % higher than previous study on the similar composition by arc melting technique.

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Periodical:

Advanced Materials Research (Volumes 97-101)

Pages:

1408-1411

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.97-101.1408

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Online since:

March 2010

Authors:

Hui Zhang, Yi Zhu He, Ye Pan, Yin Sheng He, Kee Sam Shin

Keywords:

Coating, High Entropy Alloy, Laser Cladding, NiCoFeCrAl3

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© 2010 Trans Tech Publications Ltd. All Rights Reserved

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