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Formation of core-shell structure in high entropy alloy coating by laser cladding

H. Zhang ; W. F. Wu ; Y. Z. He ; M. X. Li ; Sheng Guo (Institutionen för material- och tillverkningsteknik, Yt- och mikrostrukturteknik)
Applied Surface Science (0169-4332). Vol. 363 (2016), p. 543-547.
[Artikel, refereegranskad vetenskaplig]

The formation of core-shell structure is an interesting phenomenon occurring during the solidification process, due to the liquid phase separation. The formation of core-shell structure in high-entropy alloys, a new class of advanced metallic materials, has not been reported previously, and thus constitutes an intriguing scientific question. Here, we firstly report the formation of core-shell structure in one laser cladded high-entropy alloy, where we show the nanosized-Y2O3 powder addition, serves as the catalyst for the liquid phase separation.

Nyckelord: Liquid phase separation; High-entropy alloy; Laser cladding; Inoculant



Denna post skapades 2016-03-16.
CPL Pubid: 233289

 

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