Founding Research Journal

Founding Research Journal

Effect of Cold Work on the Microstructure and Mechanical Properties of Ambient Temperature Nimonic 263 Superalloy

Document Type : Original Research Article

Authors
Hadi Nouri 1
Seyed Mahdi Abbasi 2
Maryam Morakabati 3
Adly Akhundzada 4
1 PhD Student, Materials Engineering, Materials and Manufacturing Technologies Complex, Malik Ashtar University of Technology, Tehran, Iran
2 Professor, Faculty of Materials and Manufacturing Technologies, Malek Ashtar University of Technology, Tehran, Iran.
3 Associate Professor, Faculty of Materials and Manufacturing Technologies, Malek Ashtar University of Technology, Tehran, Iran.
4 M.Sc., Faculty of Materials and Manufacturing Technologies, Malek Ashtar University of Technology, Tehran, Iran.
10.22034/frj.2025.484576.1203
Abstract
In the present study, the effect of cold working on the microstructural changes and mechanical properties of Nimonic 263 superalloy after cold rolling, annealing and forging was investigated. For this purpose, hot-rolled samples were subjected to cold working at 33, 60 and 70%. After that, all cold-worked samples were subjected to annealing at 1050°C and aging at 800°C. The microstructural changes were investigated using optical microscopy and scanning electron microscopy as well as X-ray diffraction phase analysis. The mechanical properties of the medium were also evaluated by performing hardness and cold tensile tests. In the microstructural studies, increasing the cold working to 60% resulted in an increase in the reduction and hardness. The results of the ambient tensile test showed that with cold working, the tensile strength of Nimonic 263 superalloy increased from 957 MPa in the hot rolled state to 1074 MPa. Also, with increasing the amount of cold working to 60%, the tensile strength showed an increasing trend and then showed a trend.
Keywords
Nimonic 263 superalloy
cold work
mechanical properties
microstructure
Subjects
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Founding Research Journal
Volume 9, Issue 1 - Serial Number 26
Spring and Summer
Summer 2025
Pages 29-37

  • Receive Date 25 October 2024
  • Revise Date 02 May 2025
  • Accept Date 01 June 2025