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Volume 15
Issue 11
10.3390/met15111186
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This is an early access version, the complete PDF, HTML, and XML versions will be available soon.
Article

Effects of Hot Compression on Grain Boundary Evolution and Twin Boundary Characteristics on the Material Properties of Inconel 617 Alloy

by
Lidan Yu
1,
Zhi Jia
2,
Yiyou Tu
1,*,
Junlin Huang
3,
Jun Zhou
4 and
Lei Pan
3
1
School of Materials Science and Engineering, Southeast University, Nanjing 211189, China
2
School of Material Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, China
3
School of Energy and Environment, Southeast University, Nanjing 211189, China
4
Special Equipment Safety Supervision and Inspection Research Institute of Jiangsu Province, Nanjing 211189, China
*
Author to whom correspondence should be addressed.
Metals 2025, 15(11), 1186; https://doi.org/10.3390/met15111186 (registering DOI)
Submission received: 27 September 2025 / Revised: 20 October 2025 / Accepted: 24 October 2025 / Published: 25 October 2025
Versions Notes

Abstract

The evolution of grain size and special grain boundary in Inconel 617 alloy was analyzed by electron backscatter diffraction (EBSD). It was found that during hot compression, dynamic recrystallization (DRX) occurs, the grain size changes, and a twinning structure is generated, which then affects grain growth. In this paper, the high-angle grain boundaries (HAGBs) and low-angle grain boundaries (LAGBs) under different conditions were studied, and the formation mechanism of special twin boundaries and the proportion of these grain boundaries under different conditions were analyzed. In addition, it was found that the variation in twin boundaries is complex at different temperatures and strain rates, and the formation mechanism of special twin boundaries Σ3, Σ9, and Σ27 is also closely related to temperature and strain rate. Through electrochemical corrosion testing, it was further found that there is a positive relationship between the content of Σ3 and the corrosion resistance of the material. This paper provides theoretical guidance for the microstructural study of Inconel 617 alloy during plastic deformation.
Keywords: Inconel 617; EBSD; corrosion; DRX Inconel 617; EBSD; corrosion; DRX

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MDPI and ACS Style

Yu, L.; Jia, Z.; Tu, Y.; Huang, J.; Zhou, J.; Pan, L. Effects of Hot Compression on Grain Boundary Evolution and Twin Boundary Characteristics on the Material Properties of Inconel 617 Alloy. Metals 2025, 15, 1186. https://doi.org/10.3390/met15111186

AMA Style

Yu L, Jia Z, Tu Y, Huang J, Zhou J, Pan L. Effects of Hot Compression on Grain Boundary Evolution and Twin Boundary Characteristics on the Material Properties of Inconel 617 Alloy. Metals. 2025; 15(11):1186. https://doi.org/10.3390/met15111186

Chicago/Turabian Style

Yu, Lidan, Zhi Jia, Yiyou Tu, Junlin Huang, Jun Zhou, and Lei Pan. 2025. "Effects of Hot Compression on Grain Boundary Evolution and Twin Boundary Characteristics on the Material Properties of Inconel 617 Alloy" Metals 15, no. 11: 1186. https://doi.org/10.3390/met15111186

APA Style

Yu, L., Jia, Z., Tu, Y., Huang, J., Zhou, J., & Pan, L. (2025). Effects of Hot Compression on Grain Boundary Evolution and Twin Boundary Characteristics on the Material Properties of Inconel 617 Alloy. Metals, 15(11), 1186. https://doi.org/10.3390/met15111186

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