Cu添加フェライト系ステンレス鋼の高温変形中のCu粒子形態

DOI Web Site Web Site 参考文献33件

書誌事項

タイトル別名
  • Morphology of Cu Particle during High-Temperature Deformation in Cu-added Ferritic Stainless Steels
  • Cu テンカ フェライトケイ ステンレスコウ ノ コウオン ヘンケイ チュウ ノ Cu リュウシ ケイタイ

この論文をさがす

抄録

<p>In this study, Cu-added ferritic stainless steel sheets were investigated to understand the influences of Cu contents on the high-temperature strength during the high-temperature deformation. High-temperature proof stress at 700~900°C was improved greatly by addition of more than 1% of Cu. In the case of static aging at 900°C, the rod-shaped ε-Cu particles satisfied the K-S orientation relationship with the α matrix, but spherical-shaped ε-Cu particles without specific orientation relationship started appearing during the tensile deformation at 900°C. Similarly, the spherical-shaped and fine ε-Cu particles were observed during the thermal fatigue process in the temperature range from 200°C to 700°C with a 50% restriction ratio. During the observation using the high-temperature in-situ TEM straining, it was clarified that the ε-Cu particles were divided by dislocation shearing and parts of them were found dissolved. According to the LSW theory, it was suggested that the microstructure with fine and spherical-shaped ε-Cu particles was formed by the repetition of dissolution and precipitation during the high-temperature deformation.</p>

収録刊行物

  • 鉄と鋼

    鉄と鋼 103 (9), 539-548, 2017

    一般社団法人 日本鉄鋼協会

参考文献 (33)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ