3 Ton Melting with CaO Desulfurization of Ni-Base Single Crystal Superalloy TMS-1700, Simulating a Recycling of Used Turbine Blades

Tadaharu Yokokawa; Hiroshi Harada; Kyoko Kawagishi; Masao Sakamoto; Makoto Osawa; Yuji Takata; Michinari Yuyama; Toshiharu Kobayashi; Takuya Sugiyama; Shinsuke Suzuki

doi:10.1007/978-3-030-51834-9_39

3 Ton Melting with CaO Desulfurization of Ni-Base Single Crystal Superalloy TMS-1700, Simulating a Recycling of Used Turbine Blades

Tadaharu Yokokawa^*, Hiroshi Harada, Kyoko Kawagishi, Masao Sakamoto, Makoto Osawa, Yuji Takata, Michinari Yuyama, Toshiharu Kobayashi, Takuya Sugiyama, Shinsuke Suzuki

^*この研究の対応する著者

基幹理工学部

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

In order to investigate the applicability of a direct and complete recycling method to commercial-scale ingot production, 3 tons of a Ni-base single crystal (SC) superalloy, TMS-1700(MGA1700) was melted and desulfurized by CaO during the melting. Sulfur content in the molten alloy was reduced from about 23 ppm to about 2 ppm within 60 min after adding granular CaO to the molten alloy. Microstructural observations using SEM and EPMA showed no presence of inclusions caused by CaO addition. Creep rupture lives of the recycle-simulated TMS-1700 were equivalent to that of the standard TMS-1700 under the conditions from 800 °C/735 MPa to 1100 °C/137 MPa. The recycle-simulated TMS-1700 exhibits even better oxidation resistance compared with the standard TMS-1700, which has better oxidation resistance than CMSX-4^TM. Thus, it became clear that the CaO desulfurization improves the oxidation resistance of Ni-base superalloys. High cycle fatigue (HCF) properties of the standard and the recycle-simulated TMS-1700 were equivalent. From the results described above, it has been suggested that the application of direct and complete recycling method to commercial-scale ingot production is feasible.

本文言語	English
ホスト出版物のタイトル	Superalloys 2020 - Proceedings of the 14th International Symposium on Superalloys
編集者	Sammy Tin, Mark Hardy, Justin Clews, Jonathan Cormier, Qiang Feng, John Marcin, Chris O'Brien, Akane Suzuki
出版社	Springer Science and Business Media Deutschland GmbH
ページ	400-407
ページ数	8
ISBN（印刷版）	9783030518332
DOI	https://doi.org/10.1007/978-3-030-51834-9_39
出版ステータス	Published - 2020
イベント	14th International Symposium on Superalloys, Superalloys 2021 - Seven Springs, United States 継続期間: 2021 9月 12 → 2021 9月 16

出版物シリーズ

名前	Minerals, Metals and Materials Series
ISSN（印刷版）	2367-1181
ISSN（電子版）	2367-1696

Conference

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

ASJC Scopus subject areas

電子材料、光学材料、および磁性材料
エネルギー工学および電力技術
材料力学
金属および合金
材料化学

文献へのアクセス

10.1007/978-3-030-51834-9_39

他のファイルとリンク

フィンガープリント

「3 Ton Melting with CaO Desulfurization of Ni-Base Single Crystal Superalloy TMS-1700, Simulating a Recycling of Used Turbine Blades」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル

Yokokawa, T., Harada, H., Kawagishi, K., Sakamoto, M., Osawa, M., Takata, Y., Yuyama, M., Kobayashi, T., Sugiyama, T., & Suzuki, S. (2020). 3 Ton Melting with CaO Desulfurization of Ni-Base Single Crystal Superalloy TMS-1700, Simulating a Recycling of Used Turbine Blades. 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. 400-407). (Minerals, Metals and Materials Series). Springer Science and Business Media Deutschland GmbH. https://doi.org/10.1007/978-3-030-51834-9_39

3 Ton Melting with CaO Desulfurization of Ni-Base Single Crystal Superalloy TMS-1700, Simulating a Recycling of Used Turbine Blades. / Yokokawa, Tadaharu; Harada, Hiroshi; Kawagishi, Kyoko その他.

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. 400-407 (Minerals, Metals and Materials Series).

研究成果: Conference contribution

Yokokawa, T, Harada, H, Kawagishi, K, Sakamoto, M, Osawa, M, Takata, Y, Yuyama, M, Kobayashi, T, Sugiyama, T & Suzuki, S 2020, 3 Ton Melting with CaO Desulfurization of Ni-Base Single Crystal Superalloy TMS-1700, Simulating a Recycling of Used Turbine Blades. 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. 400-407, 14th International Symposium on Superalloys, Superalloys 2021, Seven Springs, United States, 21/9/12. https://doi.org/10.1007/978-3-030-51834-9_39

Yokokawa T, Harada H, Kawagishi K, Sakamoto M, Osawa M, Takata Y その他. 3 Ton Melting with CaO Desulfurization of Ni-Base Single Crystal Superalloy TMS-1700, Simulating a Recycling of Used Turbine Blades. 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. 400-407. (Minerals, Metals and Materials Series). doi: 10.1007/978-3-030-51834-9_39

Yokokawa, Tadaharu ; Harada, Hiroshi ; Kawagishi, Kyoko その他. / 3 Ton Melting with CaO Desulfurization of Ni-Base Single Crystal Superalloy TMS-1700, Simulating a Recycling of Used Turbine Blades. 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. 400-407 (Minerals, Metals and Materials Series).

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title = "3 Ton Melting with CaO Desulfurization of Ni-Base Single Crystal Superalloy TMS-1700, Simulating a Recycling of Used Turbine Blades",

abstract = "In order to investigate the applicability of a direct and complete recycling method to commercial-scale ingot production, 3 tons of a Ni-base single crystal (SC) superalloy, TMS-1700(MGA1700) was melted and desulfurized by CaO during the melting. Sulfur content in the molten alloy was reduced from about 23 ppm to about 2 ppm within 60 min after adding granular CaO to the molten alloy. Microstructural observations using SEM and EPMA showed no presence of inclusions caused by CaO addition. Creep rupture lives of the recycle-simulated TMS-1700 were equivalent to that of the standard TMS-1700 under the conditions from 800 °C/735 MPa to 1100 °C/137 MPa. The recycle-simulated TMS-1700 exhibits even better oxidation resistance compared with the standard TMS-1700, which has better oxidation resistance than CMSX-4TM. Thus, it became clear that the CaO desulfurization improves the oxidation resistance of Ni-base superalloys. High cycle fatigue (HCF) properties of the standard and the recycle-simulated TMS-1700 were equivalent. From the results described above, it has been suggested that the application of direct and complete recycling method to commercial-scale ingot production is feasible.",

keywords = "CaO desulfurization, Creep, Ni-base single crystal superalloys, Oxidation resistance, Recycle",

author = "Tadaharu Yokokawa and Hiroshi Harada and Kyoko Kawagishi and Masao Sakamoto and Makoto Osawa and Yuji Takata and Michinari Yuyama and Toshiharu Kobayashi and Takuya Sugiyama and Shinsuke Suzuki",

note = "Funding Information: This research was supported by the project of Japan Science and Technology Agency (JST), under “Advanced Low Carbon Technology Research and Development Program (ALCA), JPMJAL1302.” The authors would like to thank Dr. K. Yamane of IHI Master Metal Co. ltd. (present in IHI Co.) for the alloy melting in the commercial large furnace. The authors also acknowledge the help offered by Dr. S. Kawada, Dr. S. Ito, and Dr. A. Iwanade of NIMS in chemical composition analyses of alloying elements. Funding Information: Acknowledgements This research was supported by the project of Japan Science and Technology Agency (JST), under “Advanced Low Carbon Technology Research and Development Program (ALCA), JPMJAL1302.” The authors would like to thank Dr. K. Yamane of IHI Master Metal Co. ltd. (present in IHI Co.) for the alloy melting in the commercial large furnace. The authors also acknowledge the help offered by Dr. S. Kawada, Dr. S. Ito, and Dr. A. Iwanade of NIMS in chemical composition analyses of alloying elements. 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_39",

language = "English",

isbn = "9783030518332",

series = "Minerals, Metals and Materials Series",

publisher = "Springer Science and Business Media Deutschland GmbH",

pages = "400--407",

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",

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T1 - 3 Ton Melting with CaO Desulfurization of Ni-Base Single Crystal Superalloy TMS-1700, Simulating a Recycling of Used Turbine Blades

AU - Yokokawa, Tadaharu

AU - Harada, Hiroshi

AU - Kawagishi, Kyoko

AU - Sakamoto, Masao

AU - Osawa, Makoto

AU - Takata, Yuji

AU - Yuyama, Michinari

AU - Kobayashi, Toshiharu

AU - Sugiyama, Takuya

AU - Suzuki, Shinsuke

N1 - Funding Information: This research was supported by the project of Japan Science and Technology Agency (JST), under “Advanced Low Carbon Technology Research and Development Program (ALCA), JPMJAL1302.” The authors would like to thank Dr. K. Yamane of IHI Master Metal Co. ltd. (present in IHI Co.) for the alloy melting in the commercial large furnace. The authors also acknowledge the help offered by Dr. S. Kawada, Dr. S. Ito, and Dr. A. Iwanade of NIMS in chemical composition analyses of alloying elements. Funding Information: Acknowledgements This research was supported by the project of Japan Science and Technology Agency (JST), under “Advanced Low Carbon Technology Research and Development Program (ALCA), JPMJAL1302.” The authors would like to thank Dr. K. Yamane of IHI Master Metal Co. ltd. (present in IHI Co.) for the alloy melting in the commercial large furnace. The authors also acknowledge the help offered by Dr. S. Kawada, Dr. S. Ito, and Dr. A. Iwanade of NIMS in chemical composition analyses of alloying elements. Publisher Copyright: © 2020, The Minerals, Metals & Materials Society.

PY - 2020

Y1 - 2020

N2 - In order to investigate the applicability of a direct and complete recycling method to commercial-scale ingot production, 3 tons of a Ni-base single crystal (SC) superalloy, TMS-1700(MGA1700) was melted and desulfurized by CaO during the melting. Sulfur content in the molten alloy was reduced from about 23 ppm to about 2 ppm within 60 min after adding granular CaO to the molten alloy. Microstructural observations using SEM and EPMA showed no presence of inclusions caused by CaO addition. Creep rupture lives of the recycle-simulated TMS-1700 were equivalent to that of the standard TMS-1700 under the conditions from 800 °C/735 MPa to 1100 °C/137 MPa. The recycle-simulated TMS-1700 exhibits even better oxidation resistance compared with the standard TMS-1700, which has better oxidation resistance than CMSX-4TM. Thus, it became clear that the CaO desulfurization improves the oxidation resistance of Ni-base superalloys. High cycle fatigue (HCF) properties of the standard and the recycle-simulated TMS-1700 were equivalent. From the results described above, it has been suggested that the application of direct and complete recycling method to commercial-scale ingot production is feasible.

AB - In order to investigate the applicability of a direct and complete recycling method to commercial-scale ingot production, 3 tons of a Ni-base single crystal (SC) superalloy, TMS-1700(MGA1700) was melted and desulfurized by CaO during the melting. Sulfur content in the molten alloy was reduced from about 23 ppm to about 2 ppm within 60 min after adding granular CaO to the molten alloy. Microstructural observations using SEM and EPMA showed no presence of inclusions caused by CaO addition. Creep rupture lives of the recycle-simulated TMS-1700 were equivalent to that of the standard TMS-1700 under the conditions from 800 °C/735 MPa to 1100 °C/137 MPa. The recycle-simulated TMS-1700 exhibits even better oxidation resistance compared with the standard TMS-1700, which has better oxidation resistance than CMSX-4TM. Thus, it became clear that the CaO desulfurization improves the oxidation resistance of Ni-base superalloys. High cycle fatigue (HCF) properties of the standard and the recycle-simulated TMS-1700 were equivalent. From the results described above, it has been suggested that the application of direct and complete recycling method to commercial-scale ingot production is feasible.

KW - CaO desulfurization

KW - Creep

KW - Ni-base single crystal superalloys

KW - Oxidation resistance

KW - Recycle

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U2 - 10.1007/978-3-030-51834-9_39

DO - 10.1007/978-3-030-51834-9_39

M3 - Conference contribution

AN - SCOPUS:85091321769

SN - 9783030518332

T3 - Minerals, Metals and Materials Series

SP - 400

EP - 407

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 -