フェライト系耐熱鋼の析出物分布定量評価法の開発

書誌事項

タイトル別名
  • Development of Quantitative Evaluation Method of Precipitates Distributions for Ferritic Heat-Resisting Steel
  • フェライトケイ タイネツコウ ノ セキシュツブツ ブンプ テイリョウ ヒョウカホウ ノ カイハツ

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抄録

A new observation method was developed for evaluating precipitates distributions on the electropolished surface of the ferritic heat-resisting steel (9Cr-3W) , using field emission type-scanning electron microscopy (FE-SEM) . The FE-secondary and backscattered electron images of the electropolished surfaces visualize clearly fine precipitates, since the electropolishing surfaces are very flat and not influenced by martensite matrix surface unevenness.<br> The intergranular or transgranular precipitates distributions for each of the two types of chromium carbide and laves phase which were identified by backscattered electron images, were quantitatively evaluated, respectively, before and after the creep-fatigue testing.

収録刊行物

  • 圧力技術

    圧力技術 45 (2), 80-87, 2007

    一般社団法人 日本高圧力技術協会

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