Identification of Chromium-Depleted Area around Chromium Nitride Precipitates in Heat-affected Zone of Lean-Duplex Stainless Steel and <i>In-situ</i> Observation of Preferential Dissolution by EC-AFM
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- Ito Masahiro
- Hitachi, Ltd. Tokyo Institute of Technology
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- Ohashi Kenya
- Hitachi, Ltd.
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- Fujii Kazumi
- Hitachi, Ltd.
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- Hombo Kyoko
- Hitachi, Ltd.
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- Miyazaki Katsumasa
- Hitachi, Ltd.
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- Ooi Azusa
- Tokyo Institute of Technology
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- Tada Eiji
- Tokyo Institute of Technology
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- Nishikata Atsushi
- Tokyo Institute of Technology
抄録
<p>A Gleeble thermo-mechanical simulator was used to simulate the welds of duplex stainless steel S32101. A micro-precipitate of chromium-nitride and its surroundings in the simulated welds was analyzed in detail by SEM/AES and EC-AFM. The AES analysis revealed that a chromium-depleted area is present in the γ phase near the chromium-nitrides precipitated at the α/γ grain boundary. The EC-AFM observation revealed that the duplex stainless steel preferentially dissolves from the chromium-depleted area.</p>
収録刊行物
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- ＩＳＩＪ Ｉｎｔｅｒｎａｔｉｏｎａｌ
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ＩＳＩＪ Ｉｎｔｅｒｎａｔｉｏｎａｌ 62 (3), 568-576, 2022-03-15
一般社団法人 日本鉄鋼協会
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詳細情報 詳細情報について
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- CRID
- 1390010292680630272
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- ISSN
- 13475460
- 09151559
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- Crossref
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- 抄録ライセンスフラグ
- 使用不可