Quantitative Analysis of Nb in Steel Utilizing XRF-yield XAFS Edge Jump

• Nagoshi Masayasu

  Steel Research Laboratory, JFE Steel Corporation

• Aoyama Tomohiro

  Steel Research Laboratory, JFE Steel Corporation

• Tanaka Yuji

  Steel Research Laboratory, JFE Steel Corporation

• Ishida Tomoharu

  Steel Research Laboratory, JFE Steel Corporation

• Kinoshiro Satoshi

  Steel Research Laboratory, JFE Steel Corporation

• Kobayashi Katsumi

  Photon Factory, KEK

抄録

X-ray fluorescence (XRF) yield x-ray absorption fine structures (XAFS) have been investigated in terms of quantitative analysis for steel sheets containing 31–2100 ppm of Nb. Nb concentrations in the samples were determined with high accuracy from the height of the K-edge jump. The detection limit was estimated down to the single digit ppm range. The combination of this technique with the conventional extended x-ray absorption fine structure (EXAFS) analysis for an identical XAFS spectrum provides both quantity and chemical state information of trace elements in the given volume of steel samples.

収録刊行物

• ＩＳＩＪ　Ｉｎｔｅｒｎａｔｉｏｎａｌ

  ＩＳＩＪ　Ｉｎｔｅｒｎａｔｉｏｎａｌ 53 (12), 2197-2200, 2013

  一般社団法人 日本鉄鋼協会

キーワード

• XAFS
• XRF
• EXAFS
• synchrotron radiation
• quantitative analysis
• chemical state analysis
• micro alloy
• trace elements
• Nb
• segregation

詳細情報

• CRID: 1390282681464915584
• NII論文ID: 130003392810
• DOI: 10.2355/isijinternational.53.2197
• COI: 1:CAS:528:DC%2BC2cXjsFCk
• ISSN: 13475460
• ISSN: 09151559
• Web Site: https://www.jstage.jst.go.jp/article/isijinternational/53/12/53_2197/_pdf
• 本文言語コード: en
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可