LAPSE:2023.35195
Published Article
LAPSE:2023.35195
Microstructure, Wear Resistance and Corrosion Performance of Inconel 625 Layer Fabricated by Laser/Ultra-High Frequency (UHF) Induction Hybrid Deposition
Rui Sun, Yuhang Qiao, Xinhong Li, Yongjun Shi, Xiaogang Wang
April 28, 2023
In order to avoid microstructure degradation caused by low frequency induction heat in laser-induction hybrid deposition, this paper proposes a laser/ultra-high frequency (UHF) induction hybrid deposition method. Microstructure observation is carried out to reveal the effect of UHF induction heat on the microstructure of the deposited layer. Results indicate that the laser-UHF induction hybrid deposited layer, under a current density of 1.14 × 108 A/m2, exhibits a finer microstructure and fewer Laves phases than that of the laser deposited layer. As the current density increases from 1.01 × 108 A/m2 to 1.14 × 108 A/m2, the microstructure of the laser-UHF induction hybrid deposited layer is significantly refined; however, as the current density further increases, the microstructure is only slightly further refined, since the enhanced thermal effect, along with the increasing current density, may help grain growth. Wear test demonstrates that the laser-UHF induction hybrid deposited layer obtained with a current density of 1.40 × 108 A/m2 has the lowest average friction coefficient of 0.375 and the lowest wear rate of 15.53 × 10−5 mm3/N·m, indicating a better wear resistance. Corrosion resistance is also evaluated by electrochemical corrosion test. Results indicate that the addition of UHF induction heat improves the corrosion resistance of the deposited layer. Owing to the high ohm resistance of the passive film, the deposited layer fabricated with a current density of 1.01 × 108 A/m2 exhibits the best corrosion resistance. Based on the analysis of wear and corrosion performance, the current density of 1.40 × 108 A/m2 is an optimal parameter for a laser-UHF induction hybrid deposited Inconel 625 layer.
Keywords
corrosion resistance, laser deposition, microstructure, ultra-high frequency (UHF) induction heat, wear resistance
Subject
Suggested Citation
Sun R, Qiao Y, Li X, Shi Y, Wang X. Microstructure, Wear Resistance and Corrosion Performance of Inconel 625 Layer Fabricated by Laser/Ultra-High Frequency (UHF) Induction Hybrid Deposition. (2023). LAPSE:2023.35195
Author Affiliations
Sun R: College of Mechanical and Automotive Engineering, Qingdao University of Technology, Qingdao 266520, China
Qiao Y: College of Mechanical and Automotive Engineering, Qingdao University of Technology, Qingdao 266520, China
Li X: College of Resources Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, China
Shi Y: College of Mechanical and Electronic Engineering, China University of Petroleum, Qingdao 266580, China
Wang X: Shengli Oilfield Technology Inspection Center, SINOPEC, Dongying 257000, China
Journal Name
Processes
Volume
11
Issue
4
First Page
1118
Year
2023
Publication Date
2023-04-05
Published Version
ISSN
2227-9717
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PII: pr11041118, Publication Type: Journal Article
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LAPSE:2023.35195
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doi:10.3390/pr11041118
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Apr 28, 2023
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