Temperature Dependence of Corrosion of Ferritic/Martensitic and Austenitic Steels in Liquid Lead-Bismuth Eutectic

• Kurata Yuji

  Japan Atomic Energy Agency

• Saito Shigeru

  Japan Atomic Energy Agency

抄録

Corrosion tests of ferritic/martensitic (F/M), austenitic stainless and Si-added austenitic steels were conducted at 450 to 600°C for 2000 h or 3000 h in oxygen-saturated lead-bismuth eutectic (LBE) to clarify temperature effect on corrosion behavior. While the corrosion depth is small at 450°C because of oxide film formation with low growth rate, it increases at 500°C due to additional grain boundary corrosion/internal oxidation and node formation. At 550°C, extensive grain boundary corrosion/internal oxidation is observed in F/M steels. Ferritization characterized by selective dissolution of Ni and Cr, and LBE penetration occurs in austenitic stainless steels, JPCA and 316SS. Corrosion attack becomes very severe for most steels at 600°C. LBE penetration follows grain boundary corrosion/internal oxidation in F/M steels and ferritization advances deeply in JPCA and 316SS. The compound corrosion layer of oxidation, dissolution and LBE penetration often peels off. Addition of Si to austenitic steels is useful to improve corrosion resistance.

収録刊行物

• MATERIALS TRANSACTIONS

  MATERIALS TRANSACTIONS 50 (10), 2410-2417, 2009

  公益社団法人 日本金属学会

キーワード

• corrosion
• lead-bismuth
• ferritic/martensitic steel
• austenitic stainless steel
• temperature dependence
• oxidation
• selective dissolution

詳細情報

• CRID: 1390282679227968512
• NII論文ID: 10025558373
• NII論文ID: 130004454109
• NII書誌ID: AA1151294X
• DOI: 10.2320/matertrans.m2009173
• ISSN: 13475320
• ISSN: 13459678
• NDL書誌ID: 10378832
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I10378832
• Web Site: https://www.jstage.jst.go.jp/article/matertrans/50/10/50_M2009173/_pdf
• 本文言語コード: en
• 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