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Microstructure and Properties of Laser Additive Deposited of Nickel Base Super Alloy Inconel 625

Danielewski H., Antoszewski B.

Archives of Foundry Engineering

2020

Vol. 20, iss. 3

53--59

Article presents results of laser overlaying welding of metal powder Inconel 625. Laser metal deposition by laser engineered net shaping (LENS) is modern manufacturing process for low scale production series. High alloy materials such as Inconel 625 nickel based super alloy have high thermal resistant and good mechanical properties, nevertheless it's hard to machining. Plastic forming of high alloy materials such as Inconel 625 are difficult. Due to high strength characteristic performing components made from Inconel alloy are complex, selective melting of metallic powder using laser beam are alternative method for Inconel tooling. Paper present research of additive deposition of spatial structure made from Inconel 625 metallic powder with CO2 laser and integrated powder feeder. Microstructure analysis as well as strength characteristic in normal condition and at elevated temperature was performed. Possibility of using LENS technology for manufacturing components dedicated for work in high temperature conditions are presented.