溶融Znめっき鋼板のFe/Zn固液界面反応に及ぼす鋼板組織の影響

• 高田 尚記

  東京工業大学大学院理工学研究科材料工学専攻

• 竹山 雅夫

  東京工業大学大学院理工学研究科材料工学専攻

書誌事項

タイトル別名

• Effect of Steel Microstructure on Solid Fe/Liquid Zn Interface Reaction in Hot-dipped Zn Galvanized Steels
• ヨウユウ Znメッキ コウバン ノ Fe/Znコエキ カイメン ハンノウ ニ オヨボス コウバン ソシキ ノ エイキョウ

抄録

We have examined the growth kinetics of Fe-Zn intermetallics layers formed on Fe-1.5Mn (α-Fe single phase) and Fe-3.5Mn-0.1C (γ-Fe+α-Fe two phase) steel sheets dipped in pure Zn melt at 460 ºC. In an early stage of dipping, FeZn₁₃-ζ phase layer is initially formed and its thickness slightly increases with increasing dipping time till about 10 s, and then all Fe-Zn intermetallics layers (ζ, δ₁, Γ) grow following a parabolic law. The growth kinetics can be recognized in both steels. This result demonstrates a slight effect of steel microstructure on the formation of Fe-Zn intermetallics layers. The composition analysis revealed a significant Fe dissolution into pure Zn melt in an early stage of dipping. The supersaturated Fe in Zn melt would provide the driving force for the crystallization of ζ phase layer on steel sheets. The continuous layer of ζ phase would control Fe diffusion for the following growth of the other Fe-Zn intermetallics layers.

収録刊行物

• 鉄と鋼

  鉄と鋼 100 (9), 1172-1179, 2014

  一般社団法人 日本鉄鋼協会

キーワード

• galvanized steel
• intermetallics
• diffusion
• continuous cooling transformation (CCT) diagram

詳細情報

• CRID: 1390282680104879232
• NII論文ID: 130004685503
• NII書誌ID: AN10528571
• ISSN: 1341688X
• ISSN: 18832954
• ISSN: 00211575
• DOI: 10.2355/tetsutohagane.100.1172
• NDL書誌ID: 025793274
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I025793274
• Web Site: https://www.jstage.jst.go.jp/article/tetsutohagane/100/9/100_1172/_pdf
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可