書誌事項
- タイトル別名
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- Influence of Nitrogen Content and Deformation Temperatures on Dislocation Structures in Austenitic Stainless Steels
説明
<p>Nitrogen-added austenitic stainless steels exhibit excellent work-hardenability due to planar slips of dislocations. Two mechanisms of the planar slip have been proposed so far: glide plane softening mechanism and stacking-fault energy (SFE) reduction mechanism, which are thought to be dependent on nitrogen content and deformation temperature. In this study, conventional TEM, STEM-EDS and HR-STEM characterizations were carried out to clarify the influences of deformation temperature and nitrogen content on the dislocation characteristics of austenitic stainless steels. In the case of the nitrogen-added steel, the dislocation configurations became planar at a high temperature, 973 K. HR-STEM analysis revealed that SFE decreased with N addition and increased with temperature increase. Weak-beam TEM and HR-STEM analyses revealed that the planar dislocations were composed of 60° mixed-dislocations and SFs at room temperature, and edge-dislocation and SFs at 973 K. These results suggested that the edge components of defects interacted elastically with N and N-Cr pairs and contributed to the origin of the planar slips.</p>
収録刊行物
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- 鉄と鋼
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鉄と鋼 110 (10), 779-787, 2024-08-01
一般社団法人 日本鉄鋼協会
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キーワード
詳細情報 詳細情報について
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- CRID
- 1390863959868200576
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- ISSN
- 18832954
- 00211575
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- Crossref
- OpenAIRE
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- 抄録ライセンスフラグ
- 使用不可
