@inproceedings{2cd0f3bc923943d6b6ae35c74565d647,
title = "Suppression of Sulfur Segregation at Scale/Substrate Interface for Sixth-Generation Single-Crystal Ni-Base Superalloy",
abstract = "It is known that a single-crystal Ni-base superalloy containing a trace amount of sulfur has reduced high-temperature oxidation resistance. Our previous study has shown that melting of Ni-base superalloys in a CaO crucible can eliminate the effect of sulfur on oxidation resistance, but the mechanism was not completely clear. In this study, we finally succeeded in detecting the segregation of sulfur at the oxide/substrate interface of 6th generation single-crystal superalloys using STEM-EDS analysis and confirmed that segregation could be suppressed by melting in the CaO crucible. As a result, it was found that melting in the CaO crucible can improve the oxidation resistance while maintaining the creep characteristics of sixth-generation single-crystal Ni-base superalloy.",
keywords = "Creep, Oxidation, Segregation, Single-crystal Ni-based superalloy, Sulfur",
author = "Kyoko Kawagishi and Chihiro Tabata and Takuya Sugiyama and Tadaharu Yokokawa and Jun Uzuhashi and Tadakatsu Ohkubo and Yuji Takata and Michinari Yuyama and Shinsuke Suzuki and Hiroshi Harada",
note = "Funding Information: Acknowledgements This research was financially supported by Japan Science and Technology Agency (JST), under the Advanced Low Carbon Technology Research and Development Program (ALCA) “Development of direct and complete recycling method for superalloy turbine aerofoils (JPMJAL1302).” Publisher Copyright: {\textcopyright} 2020, The Minerals, Metals & Materials Society.; 14th International Symposium on Superalloys, Superalloys 2021 ; Conference date: 12-09-2021 Through 16-09-2021",
year = "2020",
doi = "10.1007/978-3-030-51834-9_78",
language = "English",
isbn = "9783030518332",
series = "Minerals, Metals and Materials Series",
publisher = "Springer Science and Business Media Deutschland GmbH",
pages = "798--803",
editor = "Sammy Tin and Mark Hardy and Justin Clews and Jonathan Cormier and Qiang Feng and John Marcin and Chris O'Brien and Akane Suzuki",
booktitle = "Superalloys 2020 - Proceedings of the 14th International Symposium on Superalloys",
}