Characterization of pack cemented Ni(2)Al(3 )coating exposed to KCl(s) induced corrosion at 600 degrees C

Dahl K. V.; Slomian A.; Lomholt T. N.; Kiamehr S.; Grumsen F. B.; Montgomery M.; Jonsson T.

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Characterization of pack cemented Ni(2)Al(3 )coating exposed to KCl(s) induced corrosion at 600 degrees C

机译：在600摄氏度下暴露于KCl（S）诱导腐蚀的粘合粘固Ni（3）涂层的胶片

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Oxidation of Ni2Al3 produced by pack aluminizing of pure nickel was studied with and without 0.10 mg cm(-2) KCl(s) deposit in an environment containing 5% O-2, 40% H2O and 55% N-2 at 600 degrees C for up to 168 h. Oxide microstructure and composition was investigated by SEM/EDX, BIB, TEM and GDOES. Oxidised Ni2Al3 shows minimal weight gain, while adding KCl results in a small weight loss consistent with evaporation of KCl. On the surface of samples exposed to the gas environment only, a 30 nm oxide of Al oxide was present, but where KCl was present as deposit, 50-250 nm thick nodules form that are enriched in K, O and Al.

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《Materials at High Temperatures》 |2018年第3期|共8页
作者
Dahl K. V.; Slomian A.; Lomholt T. N.; Kiamehr S.; Grumsen F. B.; Montgomery M.; Jonsson T.;
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作者单位

Tech Univ Denmark Dept Mech Engn Lyngby Denmark;

Chalmers Univ Technol Environm Inorgan Chem Dept Chem &

Chem Engn Gothenburg Sweden;

Tech Univ Denmark Dept Mech Engn Lyngby Denmark;

Tech Univ Denmark Dept Mech Engn Lyngby Denmark;

Tech Univ Denmark Dept Mech Engn Lyngby Denmark;

Tech Univ Denmark Dept Mech Engn Lyngby Denmark;

Chalmers Univ Technol Environm Inorgan Chem Dept Chem &

Chem Engn Gothenburg Sweden;

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原文格式 PDF
正文语种 eng
中图分类工程材料学;
关键词
Nickel aluminide; KCl; high temperature corrosion; 600 degrees C; electron microscopy;

机译：镍铝;KCl;高温腐蚀;600℃;电子显微镜;

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机译：在600摄氏度下暴露于KCl（S）诱导腐蚀的粘合粘固Ni（3）涂层的胶片
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Characterization of pack cemented Ni(2)Al(3 )coating exposed to KCl(s) induced corrosion at 600 degrees C

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