ステンレス鋼の表面の電気化学的に誘発された冷却
G T Burstein1, I M Hutchings, K Sasaki
1Department of Materials Science and Metallurgy, University of Cambridge, UK. gtb1000@cus.cam.ac.uk
Nature
|November 1, 2000
まとめ
研究者らは,ステンレス鋼の表面からマルテンサイトを除去するための電気化学的冷却方法を開発しました. このプロセスは,塊の性質を変えることなく,表面の硬さと安定性を高め,金属の表面改変のための新しいアプローチを提供します.
科学分野:
- マテリアルサイエンス 材料科学
- メタルルジーは,金属の製造業です.
- 電気化学 電気化学について
背景:
- 金属の表面改変は,高硬度と安定性を要求するアプリケーションに不可欠です.
- プラスチックの変形 (研磨,回転) または水素充電は,オステニット性ステンレス鋼の有害なマルテンシート相を誘導し,機械的性質を変更する可能性があります.
- マルテンサイトを除去するための従来の熱処理は,散発物の性質に影響を与え,その使用を制限します.
研究 の 目的:
- ステンレス鋼の表面からマルテンサイトを除去するための低温電気化学処理を調査する.
- この方法によって,質量特性を損なうことなく,表面特性を向上させることができるかどうかを判断する.
- このテクニックを様々なタイプの誘導マルテンサイト (ローリング,研磨) に適用する方法を検討する.
主な方法:
- 低温で水溶液で電気化学処理する.
- マルテンサイト構造の除去と表面特性変化の分析.
- ローリング誘発および研磨誘発マルテンサイトを含むステンレス鋼の試料に適用します.
主要な成果:
- マルテンシート構造は,電気化学処理を用いてステンレス鋼の表面から成功裏に除去されました.
- このプロセスは,従来の冷却よりも著しく低い温度で動作します.
- 表面の硬さは維持され,脆いマルテンシート相は排除され,散発の性質は保たれた.
結論:
- 電気化学アニリングは,ステンレス鋼の表面マルテンサイト除去に有効な方法を提供します.
- このテクニックは,大量の特性変更なしに,標的の表面特性強化を可能にします.
- 電気化学解熱のメカニズムを完全に解明するには,さらなる研究が必要です.
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