Anisotropic Ferrite Growth and Substructure Formation during Bainite Transformation in Fe-9Ni-C Alloys : In-Situ Measurement

• Furuhara Tadashi

  Institute for Materials Research, Tohoku University

• Abe Shin-ya

  Department of Metallurgy, Tohoku University

• Miyamoto Goro

  Institute for Materials Research, Tohoku University

書誌事項

タイトル別名

• Anisotropic Ferrite Growth and Substructure Formation during Bainite Transformation in Fe-9Ni-C Alloys: <i>In-Situ</i> Measurement

抄録

Growth kinetics of bainitic ferrite is re-examined in Fe-C-9%Ni alloys by taking the morphological anisotropy of bainitic ferrite due to crystallographic constraint in in-situ observation using confocal laser scanning microscopy. The true lengthening kinetics determined, after identifying crystallographic variants of bainitic ferrite in post-transformation EBSD measurement, is faster by a factor of about 4 than the apparent lengthening kinetics measured as a projection on the observed surface. The lengthening rate is mostly equal to or still slower than those predicted by carbon diffusion controlled kinetics. Variant pairing of bainitic ferrite belonging to the same Bain group occurred preferably in development of local substructure as previously reported in low-alloy low-carbon steels.

収録刊行物

• MATERIALS TRANSACTIONS

  MATERIALS TRANSACTIONS 59 (2), 214-223, 2018

  公益社団法人 日本金属学会

キーワード

• phase transformation
• steel
• bainite
• growth kinetics
• crystallography

詳細情報

• CRID: 1390001204252978304
• NII論文ID: 130006320178
• NII書誌ID: AA1151294X
• DOI: 10.2320/matertrans.mc201714
• ISSN: 13475320
• ISSN: 13459678
• NDL書誌ID: 028793067
• Web Site: http://id.ndl.go.jp/bib/028793067
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I028793067
• Web Site: https://www.jstage.jst.go.jp/article/matertrans/59/2/59_MC201714/_pdf
• 本文言語コード: en
• データソース種別:
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  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
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