Elimination of elemental segregation by high-speed laser remelting for ultra-high-speed laser cladding Inconel 625 coatings

Yuhang Ding; Wanyuan Gui; Baoxian Nie; Wenya Bi; Cheng Zhong; Yanpeng Xue; Benli Luan

Journal of Materials Research and Technology (May 2023)

Elimination of elemental segregation by high-speed laser remelting for ultra-high-speed laser cladding Inconel 625 coatings

Yuhang Ding,
Wanyuan Gui,
Baoxian Nie,
Wenya Bi,
Cheng Zhong,
Yanpeng Xue,
Benli Luan

Affiliations

Yuhang Ding: National Center for Materials Service Safety, University of Science and Technology Beijing, Beijing, 100083, China
Wanyuan Gui: National Center for Materials Service Safety, University of Science and Technology Beijing, Beijing, 100083, China; Corresponding author.
Baoxian Nie: National Center for Materials Service Safety, University of Science and Technology Beijing, Beijing, 100083, China
Wenya Bi: National Center for Materials Service Safety, University of Science and Technology Beijing, Beijing, 100083, China
Cheng Zhong: National Center for Materials Service Safety, University of Science and Technology Beijing, Beijing, 100083, China
Yanpeng Xue: National Center for Materials Service Safety, University of Science and Technology Beijing, Beijing, 100083, China; Corresponding author.
Benli Luan: National Center for Materials Service Safety, University of Science and Technology Beijing, Beijing, 100083, China; Department of Chemistry, Western University, London, ON N6A 5B7, Canada

Journal volume & issue: Vol. 24
pp. 4118 – 4129

Abstract

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Ultra-high-speed laser cladding (UHSLC) is an effective way to deposit Inconel 625 coatings on 27SiMn steel to prolong its service life. However, elemental segregation in the Inconel 625 coatings is serious and high-speed laser remelting (HSLR) was investigated in order to tackle the issue. The HSLR treatment was also found to reduce the surface roughness of UHSLC Inconel 625 laser cladding significantly, while enhancing their wear resistance. Furthermore, finite element simulation suggests that a higher remelting power may result in a better melt pool fluidity and a more uniform composition distribution.

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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