Mechanical properties and microstructure of Inconel 625 cylinders used in aerospace industry subjected to flow forming with laser and standard heat treatment

The aim of the current study was to obtain a hollow axisymmetric cylinder that can be used in the aerospace industry. Mechanical properties and microstructure of Inconel 625 after cold forming and subsequent heat treatment were analyzed. The results show that due to cold forming process the strength...

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Bibliographic Details
Published in:International journal of material forming 2019-01, Vol.12 (1), p.135-144
Main Authors: Maj, P., Koralnik, M., Adamczyk-Cieslak, B., Romelczyk-Baishya, B., Kut, S., Pieja, T., Mrugala, T., Mizera, J.
Format: Article
Language:English
Subjects:
Aerospace industry
Annealing furnaces
CAE) and Design
Cold working
Computational Intelligence
Computer-Aided Engineering (CAD
Cylinders
Electric resistance furnaces
Engineering
Heat treating
Heat treatment
Laser beam heating
Lasers
Machines
Manufacturing
Materials Science
Mechanical Engineering
Mechanical properties
Microstructure
Nickel base alloys
Original Research
Processes
Superalloys
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Summary:The aim of the current study was to obtain a hollow axisymmetric cylinder that can be used in the aerospace industry. Mechanical properties and microstructure of Inconel 625 after cold forming and subsequent heat treatment were analyzed. The results show that due to cold forming process the strength of the workpiece drastically increased (up to 1600 MPa) at the cost of plasticity. To obtain good combination of mechanical properties, the material was additionally using two heating methods: laser and resistance furnace annealing. The main purpose of the experiment was to prepare manufacturing guidelines for aerospace industry requirements. The results obtained in the experiment enabled to obtain a part that meets the requirements of the industry. Additionally, laser and furnace heat treatment were compared as well as their mechanical properties and microstructure of the material.
ISSN:1960-6206
1960-6214
DOI:10.1007/s12289-018-1413-8