Effect of Fe Content on Microstructure and Properties of Laser Cladding Inconel 625 Alloy

Dilution rate is one of most important factors influencing the microstructure and performance of the laser cladding layer. In order to obtain a reasonable dilution rate in the laser cladding layer of Inconel 625 alloy, the laser cladding layers with different Fe content were prepared on the surface...

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Bibliographic Details
Published in:Materials 2022-11, Vol.15 (22), p.8200
Main Authors: Liu, Weidong, Li, Lei, Mi, Guofa, Wang, Jincai, Pan, Yujia
Format: Article
Language:English
Subjects:
Alloys
Analysis
Corrosion and anti-corrosives
Corrosion resistance
Corrosive wear
Dilution
Experiments
Gas flow
Grain boundaries
Grain orientation
Grain size
Hardness
Heat
Heat resistant alloys
High temperature
Iron
Laser beam cladding
Lasers
Machine learning
Magnetic fields
Microstructure
Nickel alloys
Nickel base alloys
Nodular cast iron
Simulation
Specialty metals industry
Superalloys
Velocity
Wear resistance
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Summary:Dilution rate is one of most important factors influencing the microstructure and performance of the laser cladding layer. In order to obtain a reasonable dilution rate in the laser cladding layer of Inconel 625 alloy, the laser cladding layers with different Fe content were prepared on the surface of 20# steel by the laser cladding technique. The influence of Fe content on the microstructure and performance of Inconel 625 alloy cladding layer was investigated. The results indicate that with the increase in Fe content in the alloy, the grain size of the cladding layer becomes coarser, the grain orientation difference increases first and then decreases, and the grain boundary angle decreases first and then increases. The hardness, high temperature wear resistance, and high temperature corrosion resistance gradually decreased. It is concluded that the dilution rate of Fe in laser cladding Inconel 625 alloy should be under 5 wt.%.
ISSN:1996-1944
1996-1944
DOI:10.3390/ma15228200