High Temperature Fatigue Life Analysis of Single Crystal Ni-Base Superalloys Considering .GAMMA./.GAMMA.' Microstructure
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- SAKAGUCHI Motoki
- Nagaoka Univ. of Tech.
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- OKAZAKI Masakazu
- Dept. of Mech. Eng., Nagaoka Univ. of Tech.
Bibliographic Information
- Other Title
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- γ/γ′微細構造を考慮した単結晶Ni基超合金の高温疲労特性評価
- γ/γ'微細構造を考慮した単結晶Ni基超合金の高温疲労特性評価
- ガンマ ガンマ ビサイ コウゾウ オ コウリョ シタ タンケッショウ Niキ チョウゴウキン ノ コウオン ヒロウ トクセイ ヒョウカ
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Description
Strain controlled thermo-mechanical fatigue (TMF) and low cycle fatigue (LCF) tests were conducted in a single crystal Ni-based superalloy, CMSX-4, under various test conditions. At first, it was shown ex-perimentally that the superalloy revealed the TMF and LCF lives associated with some unique charac-teristics, which were not always interpreted well, so far as the traditional stress-based and/or strain-based criteria were employed : e.g., Manson-Coffin law and Ostergren method. New micromechanics model is proposed to estimate the TMF and LCF lives taking account of the unique microstructure of superalloys. The proposed method enabled us to estimate some unique characteristics in the TMF and LCF failures of superalloys, although some quantitative hurdles should be overcome further.
Journal
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- Journal of the Society of Materials Science, Japan
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Journal of the Society of Materials Science, Japan 55 (3), 309-316, 2006
The Society of Materials Science, Japan
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Keywords
Details 詳細情報について
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- CRID
- 1390282680395305472
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- NII Article ID
- 110006570918
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- NII Book ID
- AN00096175
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- ISSN
- 18807488
- 05145163
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- NDL BIB ID
- 7884966
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed