| Issue |
E3S Web Conf.
Volume 299, 2021
4th Annual International Conference on Energy Development and Environmental Protection (EDEP 2021)
|
|
|---|---|---|
| Article Number | 02004 | |
| Number of page(s) | 8 | |
| Section | Environmental Science and Engineering | |
| DOI | https://doi.org/10.1051/e3sconf/202129902004 | |
| Published online | 05 August 2021 | |
Research Progress of the Effects of Trace S Element on the Microstructure of Cast Nickel-base Superalloys
1 Science and Technology on Advanced High Temperature Structural Materials Laboratory, Institute of Aeronautical Materials, Beijing 100095, China
2 Aviation Military Representative Office of Military Aviation Bureau of the Army Equipment Department in Beijing, Beijing 100095, China
* Corresponding author: lcgsuperalloy@163.com
In the process of alloy melting and vacuum pouring, the impurity S element will inevitably be introduced into the nickel-base superalloys, which will cause adverse effects on the microstructure and properties of the cast nickel-base superalloys. In this paper, the research progress of S element in cast nickel-base superalloys is summarized. The effects of S element on the microstructure are described in detail from experimental researches and first-principles. The reasons for the grain boundary embrittlement caused by S atom are discussed, and the authors wish to provide some references for the better development of cast nickel-base superalloys.
© The Authors, published by EDP Sciences, 2021
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