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このアイテムのファイル:
| ファイル | 記述 | サイズ | フォーマット | |
|---|---|---|---|---|
| j.ijfatigue.2020.105921.pdf | 9.68 MB | Adobe PDF | 見る/開く |
| タイトル: | Crystallographic analysis of fatigue fracture initiation in 8Ni-0.1C martensitic steel |
| 著者: | Okada, Kazuho Shibata, Akinobu Takeda, Yasunari Tsuji, Nobuhiro    https://orcid.org/0000-0002-2132-1327 (unconfirmed) |
| 著者名の別形: | 岡田, 和歩 柴田, 曉伸 竹田, 泰成 辻, 伸泰 |
| キーワード: | Fatigue fracture Martensitic steel Electron backscattering diffraction Crystallographic orientation analysis |
| 発行日: | Feb-2021 |
| 出版者: | Elsevier BV |
| 誌名: | International Journal of Fatigue |
| 巻: | 143 |
| 論文番号: | 105921 |
| 抄録: | The present paper investigated characteristics of fatigue fracture behavior, particularly initiation stage of fatigue fracture (Stage I), in an as-quenched martensitic steel from microstructural and crystallographic points of view. The detailed crystallographic orientation analysis using EBSD revealed that block boundaries in lath martensite structure were the most preferential initiation sites for fatigue cracks. We found that incompatibility of plastic strains between adjacent blocks was the origin for the formation of initial fatigue cracks at block boundaries. Moreover, plastic deformation along {0 1 1} slip planes also played an important role on the transgranular crack propagation. |
| 著作権等: | © 2020 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license |
| URI: | http://hdl.handle.net/2433/277477 |
| DOI(出版社版): | 10.1016/j.ijfatigue.2020.105921 |
| 出現コレクション: | 学術雑誌掲載論文等 |
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