Abstract
To investigate the microstructural evolution of wrought-nickel-based superalloy GH4169 from the original ingot to the finished product of manufacturing processes, different kinds of etchants and etching methods were used to show the fine precipitates and their morphologies. The obtained microstructures can vary in size, type, distribution, location, formation, and interactions of multiple phases, which were observed and analyzed by optical microscopy (OM), scanning electron microscopy (SEM), and an energy dispersive spectrometer (EDS). The dendrite segregation behavior of as-cast superalloy GH4169 was investigated. In addition, the microstructural evolution mechanism of second-phase particles during dynamic recrystallization was analyzed. This work sheds light on the evolution of the second-phase structure of nickel-based superalloys during the preparation process, providing guidance for process development and visual interpretation of the relationships between microstructure and properties.
Funder
the Open Foundation of State Key Laboratory for Young Teachers of USTB
National Natural Science Foundation of China
Subject
General Materials Science,Metals and Alloys
Reference39 articles.
1. Wilheim, R., Franz, B., and Heinrich, C. (1941). Hardening Cobalt-Nickel-Chromium-Iron Alloys. (US2247643A).
2. Boegehold, A.L., Dean, K., and Fred, J. (1958). Wrought high temperature alloy. (US2860968A).
3. Keiser, D.D., and Brown, H.L. (1976). Review of the Physical Metallurgy of Alloy 718.
4. Reed, R.C. (2006). The Superalloys: Fundamentals and Applications, Cambridge University Press.
5. Akca, E., and Gürsel, A. (2015). A Review on Superalloys and IN718 Nickel-Based INCONEL Superalloy. Period. Eng. Nat. Sci. (PEN), 3.
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献