Cracks suppression strategies for CoCrNi medium entropy alloy fabricated by laser directed energy deposition

Cracks suppression strategies for CoCrNi medium entropy alloy fabricated by laser directed energy deposition

Laser-directed energy deposition (l-DED) additive manufacturing of the CoCrNi medium entropy alloy is prone to cracking, especially with high laser heat input. Electron backscatter diffraction analysis showed crack formation and stress concentration at the high-angle grain boundaries. In addition, e...

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Bibliographic Details
Main Authors:	Xiaolin Bi, Ruifeng Li, Taotao Li, Xiancheng Zhang, Jiangbo Cheng, Yingtao Tian
Format:	Article
Language:	English
Published:	Elsevier 2023-02-01
Series:	Materials & Design
Subjects:	CoCrNi medium entropy alloy Laser-directed energy deposition Oxygen content High-angle grain boundary stress Crack suppression
Online Access:	http://www.sciencedirect.com/science/article/pii/S0264127522012023

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