Suppression of Sulfur Segregation at Scale/Substrate Interface for Sixth-Generation Single-Crystal Ni-Base Superalloy

Kyoko Kawagishi; Chihiro Tabata; Takuya Sugiyama; Tadaharu Yokokawa; Jun Uzuhashi; Tadakatsu Ohkubo; Yuji Takata; Michinari Yuyama; Shinsuke Suzuki; Hiroshi Harada

doi:10.1007/978-3-030-51834-9_78

Suppression of Sulfur Segregation at Scale/Substrate Interface for Sixth-Generation Single-Crystal Ni-Base Superalloy

Kyoko Kawagishi^*, Chihiro Tabata, Takuya Sugiyama, Tadaharu Yokokawa, Jun Uzuhashi, Tadakatsu Ohkubo, Yuji Takata, Michinari Yuyama, Shinsuke Suzuki, Hiroshi Harada

^*Corresponding author for this work

School of Fundamental Science and Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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.

Original language	English
Title of host publication	Superalloys 2020 - Proceedings of the 14th International Symposium on Superalloys
Editors	Sammy Tin, Mark Hardy, Justin Clews, Jonathan Cormier, Qiang Feng, John Marcin, Chris O'Brien, Akane Suzuki
Publisher	Springer Science and Business Media Deutschland GmbH
Pages	798-803
Number of pages	6
ISBN (Print)	9783030518332
DOIs	https://doi.org/10.1007/978-3-030-51834-9_78
Publication status	Published - 2020
Event	14th International Symposium on Superalloys, Superalloys 2021 - Seven Springs, United States Duration: 2021 Sep 12 → 2021 Sep 16

Publication series

Name	Minerals, Metals and Materials Series
ISSN (Print)	2367-1181
ISSN (Electronic)	2367-1696

Conference

Conference	14th International Symposium on Superalloys, Superalloys 2021
Country/Territory	United States
City	Seven Springs
Period	21/9/12 → 21/9/16

Keywords

Creep
Oxidation
Segregation
Single-crystal Ni-based superalloy
Sulfur

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Energy Engineering and Power Technology
Mechanics of Materials
Metals and Alloys
Materials Chemistry

Access to Document

10.1007/978-3-030-51834-9_78

Cite this

Kawagishi, K., Tabata, C., Sugiyama, T., Yokokawa, T., Uzuhashi, J., Ohkubo, T., Takata, Y., Yuyama, M., Suzuki, S., & Harada, H. (2020). Suppression of Sulfur Segregation at Scale/Substrate Interface for Sixth-Generation Single-Crystal Ni-Base Superalloy. In S. Tin, M. Hardy, J. Clews, J. Cormier, Q. Feng, J. Marcin, C. O'Brien, & A. Suzuki (Eds.), Superalloys 2020 - Proceedings of the 14th International Symposium on Superalloys (pp. 798-803). (Minerals, Metals and Materials Series). Springer Science and Business Media Deutschland GmbH. https://doi.org/10.1007/978-3-030-51834-9_78

Suppression of Sulfur Segregation at Scale/Substrate Interface for Sixth-Generation Single-Crystal Ni-Base Superalloy. / Kawagishi, Kyoko; Tabata, Chihiro; Sugiyama, Takuya; Yokokawa, Tadaharu; Uzuhashi, Jun; Ohkubo, Tadakatsu; Takata, Yuji; Yuyama, Michinari; Suzuki, Shinsuke; Harada, Hiroshi.

Superalloys 2020 - Proceedings of the 14th International Symposium on Superalloys. ed. / Sammy Tin; Mark Hardy; Justin Clews; Jonathan Cormier; Qiang Feng; John Marcin; Chris O'Brien; Akane Suzuki. Springer Science and Business Media Deutschland GmbH, 2020. p. 798-803 (Minerals, Metals and Materials Series).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Kawagishi, K, Tabata, C, Sugiyama, T, Yokokawa, T, Uzuhashi, J, Ohkubo, T, Takata, Y, Yuyama, M, Suzuki, S & Harada, H 2020, Suppression of Sulfur Segregation at Scale/Substrate Interface for Sixth-Generation Single-Crystal Ni-Base Superalloy. in S Tin, M Hardy, J Clews, J Cormier, Q Feng, J Marcin, C O'Brien & A Suzuki (eds), Superalloys 2020 - Proceedings of the 14th International Symposium on Superalloys. Minerals, Metals and Materials Series, Springer Science and Business Media Deutschland GmbH, pp. 798-803, 14th International Symposium on Superalloys, Superalloys 2021, Seven Springs, United States, 21/9/12. https://doi.org/10.1007/978-3-030-51834-9_78

Kawagishi K, Tabata C, Sugiyama T, Yokokawa T, Uzuhashi J, Ohkubo T et al. Suppression of Sulfur Segregation at Scale/Substrate Interface for Sixth-Generation Single-Crystal Ni-Base Superalloy. In Tin S, Hardy M, Clews J, Cormier J, Feng Q, Marcin J, O'Brien C, Suzuki A, editors, Superalloys 2020 - Proceedings of the 14th International Symposium on Superalloys. Springer Science and Business Media Deutschland GmbH. 2020. p. 798-803. (Minerals, Metals and Materials Series). https://doi.org/10.1007/978-3-030-51834-9_78

Kawagishi, Kyoko ; Tabata, Chihiro ; Sugiyama, Takuya ; Yokokawa, Tadaharu ; Uzuhashi, Jun ; Ohkubo, Tadakatsu ; Takata, Yuji ; Yuyama, Michinari ; Suzuki, Shinsuke ; Harada, Hiroshi. / Suppression of Sulfur Segregation at Scale/Substrate Interface for Sixth-Generation Single-Crystal Ni-Base Superalloy. Superalloys 2020 - Proceedings of the 14th International Symposium on Superalloys. editor / Sammy Tin ; Mark Hardy ; Justin Clews ; Jonathan Cormier ; Qiang Feng ; John Marcin ; Chris O'Brien ; Akane Suzuki. Springer Science and Business Media Deutschland GmbH, 2020. pp. 798-803 (Minerals, Metals and Materials Series).

@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",

}

TY - GEN

T1 - Suppression of Sulfur Segregation at Scale/Substrate Interface for Sixth-Generation Single-Crystal Ni-Base Superalloy

AU - Kawagishi, Kyoko

AU - Tabata, Chihiro

AU - Sugiyama, Takuya

AU - Yokokawa, Tadaharu

AU - Uzuhashi, Jun

AU - Ohkubo, Tadakatsu

AU - Takata, Yuji

AU - Yuyama, Michinari

AU - Suzuki, Shinsuke

AU - Harada, Hiroshi

N1 - 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: © 2020, The Minerals, Metals & Materials Society.

PY - 2020

Y1 - 2020

N2 - 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.

AB - 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.

KW - Creep

KW - Oxidation

KW - Segregation

KW - Single-crystal Ni-based superalloy

KW - Sulfur

UR - http://www.scopus.com/inward/record.url?scp=85091317345&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85091317345&partnerID=8YFLogxK

U2 - 10.1007/978-3-030-51834-9_78

DO - 10.1007/978-3-030-51834-9_78

M3 - Conference contribution

AN - SCOPUS:85091317345

SN - 9783030518332

T3 - Minerals, Metals and Materials Series

SP - 798

EP - 803

BT - Superalloys 2020 - Proceedings of the 14th International Symposium on Superalloys

A2 - Tin, Sammy

A2 - Hardy, Mark

A2 - Clews, Justin

A2 - Cormier, Jonathan

A2 - Feng, Qiang

A2 - Marcin, John

A2 - O'Brien, Chris

A2 - Suzuki, Akane

PB - Springer Science and Business Media Deutschland GmbH

T2 - 14th International Symposium on Superalloys, Superalloys 2021

Y2 - 12 September 2021 through 16 September 2021

ER -

Suppression of Sulfur Segregation at Scale/Substrate Interface for Sixth-Generation Single-Crystal Ni-Base Superalloy

Abstract

Publication series

Conference

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this