Effect of electromagnetic field on element segregation and texture via laser cladding of Inconel 718

Jianhua Yao; Juehui Li; Honghao Ge; Yong Hu; Fei Wang; Jiaming Mao; Yunfeng Liu; Qunli Zhang; Liang Wang

Journal of Materials Research and Technology (Nov 2023)

Effect of electromagnetic field on element segregation and texture via laser cladding of Inconel 718

Jianhua Yao,
Juehui Li,
Honghao Ge,
Yong Hu,
Fei Wang,
Jiaming Mao,
Yunfeng Liu,
Qunli Zhang,
Liang Wang

Affiliations

Jianhua Yao: College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310014, PR China; Institute of Laser Advanced Manufacturing, Zhejiang University of Technology, Hangzhou 310014, PR China; Collaborative Innovation Centre of High-End Laser Manufacturing Equipment by MOE and Zhejiang Provincial Government, Hangzhou 310014, PR China
Juehui Li: College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310014, PR China; Institute of Laser Advanced Manufacturing, Zhejiang University of Technology, Hangzhou 310014, PR China; Collaborative Innovation Centre of High-End Laser Manufacturing Equipment by MOE and Zhejiang Provincial Government, Hangzhou 310014, PR China
Honghao Ge: College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310014, PR China; Institute of Laser Advanced Manufacturing, Zhejiang University of Technology, Hangzhou 310014, PR China; Collaborative Innovation Centre of High-End Laser Manufacturing Equipment by MOE and Zhejiang Provincial Government, Hangzhou 310014, PR China
Yong Hu: College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310014, PR China; Institute of Laser Advanced Manufacturing, Zhejiang University of Technology, Hangzhou 310014, PR China; Collaborative Innovation Centre of High-End Laser Manufacturing Equipment by MOE and Zhejiang Provincial Government, Hangzhou 310014, PR China
Fei Wang: College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310014, PR China; Institute of Laser Advanced Manufacturing, Zhejiang University of Technology, Hangzhou 310014, PR China; Collaborative Innovation Centre of High-End Laser Manufacturing Equipment by MOE and Zhejiang Provincial Government, Hangzhou 310014, PR China
Jiaming Mao: College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310014, PR China; Institute of Laser Advanced Manufacturing, Zhejiang University of Technology, Hangzhou 310014, PR China; Collaborative Innovation Centre of High-End Laser Manufacturing Equipment by MOE and Zhejiang Provincial Government, Hangzhou 310014, PR China
Yunfeng Liu: College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310014, PR China
Qunli Zhang: College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310014, PR China; Institute of Laser Advanced Manufacturing, Zhejiang University of Technology, Hangzhou 310014, PR China; Collaborative Innovation Centre of High-End Laser Manufacturing Equipment by MOE and Zhejiang Provincial Government, Hangzhou 310014, PR China
Liang Wang: College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310014, PR China; Institute of Laser Advanced Manufacturing, Zhejiang University of Technology, Hangzhou 310014, PR China; Collaborative Innovation Centre of High-End Laser Manufacturing Equipment by MOE and Zhejiang Provincial Government, Hangzhou 310014, PR China; Corresponding author. College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310014, PR China.

Journal volume & issue: Vol. 27
pp. 3539 – 3550

Abstract

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Element segregation and texture control are two prominent challenges for Inconel 718 repairing via laser cladding. Hence, the electromagnetic field was introduced in the laser cladding of Inconel 718 in this paper. The effect of thermal-electromagnetic convection, magnetic torque, and electromigration induced by electromagnetic field on element segregation and texture of Inconel 718 was studied. Results show element segregation is suppressed due to thermal-electromagnetic convection and electromigration. More Nb and Ti are solid-dissolved into the γ matrix. The average fraction of the Laves phase reduces from 6.44 % to 4.04 %, while the morphology of the Laves phase is modified from long-chain-like to discrete wormlike and exhibits smaller size, owing to modified element segregation. Moreover, magnetic torque drives the rod crystal to rotate with the applied electromagnetic field and thereby the long axis of the rod crystal deviates from direction. The maximum multiple of uniform density decreases from 7.54 to 2.97. This study provides a promising method to weaken texture and element segregation in laser additive manufacturing.

Published in Journal of Materials Research and Technology

ISSN: 2238-7854 (Print); 2214-0697 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Technology: Mining engineering. Metallurgy
Website: https://www.journals.elsevier.com/journal-of-materials-research-and-technology/

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