Kota Sawada
(Research Center for Structural Materials/Materials Evaluation Field/Creep Property Group, National Institute for Materials Science
)
;
Yasushi Taniuchi
(Research Network and Facility Services Division/Materials Data Platform/Creep Data Unit, National Institute for Materials Science)
;
Kaoru Sekido
(Research Network and Facility Services Division/Materials Data Platform/Creep Data Unit, National Institute for Materials Science)
;
Takehiro Nojima
(Research Network and Facility Services Division/Materials Data Platform/Creep Data Unit, National Institute for Materials Science)
;
Tomotaka Hatakeyama
(Research Center for Structural Materials/Materials Evaluation Field/Creep Property Group, National Institute for Materials Science)
;
Kazuhiro Kimura
(Research Center for Structural Materials, National Institute for Materials Science)
コレクション
引用
説明:
(abstract)Creep data of Ni-based 19Cr-18Fe-3Mo-5Nb-Ti-Al superalloy (JIS NCF718-B) were obtained at 550oC to 750oC under 100MPa to 1000MPa and analyzed to determine the 100,000 h creep rupture strength. The tensile properties were also evaluated at room temperature to 750°C. Four heats of JIS NCF718-B were used in this study. There was no large difference in the 0.2% proof stress and tensile strength among the heats. A difference in the tensile ductility was observed at 650°C to 750°C among the heats. Heat-to-heat variation of the creep rupture strength was confirmed among the heats and the variation became large in the long term. Regression analysis was conducted for the tensile test data of the four heats. The creep rupture data of all the heats were fitted to the regression equation of logarithmic stress using the time–temperature parameters of Larson–Miller, Orr–Sherby–Dorn, and Manson–Haferd to estimate the 100,000 h creep rupture strength. The Orr–Sherby–Dorn parameter and regression equation of the second degree was suitable for the creep strength evaluation.
権利情報:
キーワード: Nickel-based superalloy, 100,000h creep rupture strength, heat-to-heat variation
刊行年月日: 2024-12-31
出版者: Taylor & Francis
掲載誌:
- Science and Technology of Advanced Materials: Methods (ISSN: 27660400) vol. 4 issue. 1 p. 1-20
研究助成金:
原稿種別: 出版者版 (Version of record)
MDR DOI:
公開URL: https://doi.org/10.1080/27660400.2024.2425179
関連資料:
その他の識別子:
連絡先:
更新時刻: 2024-12-05 12:47:31 +0900
MDRでの公開時刻: 2024-12-05 12:47:31 +0900