Proceedings of the 4th Annual International Conference on Material Engineering and Application (ICMEA 2017)

Growth Morphology of CuMg2 in Laser Forming of AlCoCrCuFeNi Coating on Mg

Authors
Guanghui Meng, Xiaoting Liu, Jun Qiu, Bo Wang, Kun Zhao
Corresponding Author
Guanghui Meng
Available Online February 2018.
DOI
10.2991/icmea-17.2018.37How to use a DOI?
Keywords
high-entropy alloy; laser cladding; coatings
Abstract

The AlCoCrCuFeNi high-entropy alloy coating was fabricated on pure magnesium by means of laser cladding using a direct blown powder method. The formed coating is composed of two different layers, i.e., a lower composite layer consisting of some partially melted HEA particles in a mixture of Mg and a top HEA coating. Also, some Cu was rejected into the substrate melt during the processing, resulting in the formation of CuMg2 dendrites. Moreover, the dendritic structure of the CuMg2 phase, which shows a faceted interface at low growth rates, is shown to undergo a transition from a faceted to non-faceted interface at relatively higher growth velocities. The change in solidification behavior of the formed CuMg2 phase is likely to be due to the undercooling increase resulting from the solidification velocity increasing.

Copyright
© 2018, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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Volume Title
Proceedings of the 4th Annual International Conference on Material Engineering and Application (ICMEA 2017)
Series
Advances in Engineering Research
Publication Date
February 2018
ISBN
10.2991/icmea-17.2018.37
ISSN
2352-5401
DOI
10.2991/icmea-17.2018.37How to use a DOI?
Copyright
© 2018, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Cite this article

TY  - CONF
AU  - Guanghui Meng
AU  - Xiaoting Liu
AU  - Jun Qiu
AU  - Bo Wang
AU  - Kun Zhao
PY  - 2018/02
DA  - 2018/02
TI  - Growth Morphology of CuMg2 in Laser Forming of AlCoCrCuFeNi Coating on Mg
BT  - Proceedings of the 4th Annual International Conference on Material Engineering and Application (ICMEA 2017)
PB  - Atlantis Press
SP  - 162
EP  - 165
SN  - 2352-5401
UR  - https://doi.org/10.2991/icmea-17.2018.37
DO  - 10.2991/icmea-17.2018.37
ID  - Meng2018/02
ER  -