ニッケルの高温酸化に及ぼす微量の塩化水素の影響

• 佐藤 芳幸

  秋田大学鉱山学部物質工学科

• 原 基

  秋田大学鉱山学部物質工学科

• 品田 豊

  秋田大学鉱山学部物質工学科

書誌事項

タイトル別名

• Effect of a Small Amount of Hydrogen Chloride on High Temperature Oxidation of Nickel
• ニッケル ノ コウオン サンカ ニ オヨボス ビリョウ ノ エンカ スイソ ノ

抄録

High temperature oxidation behavior of Ni in an 1%HCl-50%O₂-N₂ atmosphere was examined at 973-1273 K by thermogravimetric technique, XRD and EPMA analyses. Mass loss was observed at all the temperatures and increased with time and with temperature. The consumptions of Ni in 1%HCl were larger than those in 100%O₂. This fact suggests that Ni is acceleratedly corroded in 1%HCl. After the oxidation test, a NiO scale was found on the specimen. Furthermore, it was found that the NiO scale is constructed of some layers and Cl exists around the metal/scale interface in the scale. Evaporation of NiCl₂ was identified by analysis of deposits inside the experimental reaction tube. The formation of NiCl₂ was also recognized from the fact that total consumption of Ni was larger than consumption of Ni for NiO formation. Namely, the difference of the two consumptions represents Ni consumption for NiCl₂ formation. From these results and thermodynamical discussion, it was suggested that the oxidation of Ni in an 1%HCl atmosphere proceeds by alternate reactions of oxidation and chlorination.

収録刊行物

• 日本金属学会誌

  日本金属学会誌 60 (2), 192-197, 1996

  公益社団法人 日本金属学会

キーワード

• high temperature oxidation
• nickel
• hydrogen chloride
• thermogravimetry
• chlorination

詳細情報

• CRID: 1390001206489800192
• NII論文ID: 10004473898
• NII論文ID: 10001810713
• NII書誌ID: AN00187860
• DOI: 10.2320/jinstmet1952.60.2_192
• ISSN: 18806880
• ISSN: 24337501
• ISSN: 00214876
• NDL書誌ID: 3926930
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I3926930
• Web Site: https://www.jstage.jst.go.jp/article/jinstmet1952/60/2/60_2_192/_pdf
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