Positive Effect of Mischmetal Ce/La (Cerium and Lanthanum) on High Temperature Oxidation of Ni80Cr20 Alloys

Ateba Betanda Yanick; Afrounn Amina; Bousquet RichardRiblet Francoise

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Positive Effect of Mischmetal Ce/La (Cerium and Lanthanum) on High Temperature Oxidation of Ni80Cr20 Alloys

机译：Positive Effect of Mischmetal Ce/La (Cerium and Lanthanum) on High Temperature Oxidation of Ni80Cr20 Alloys

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摘要

The effect of Mischmetal Ce/La on the high temperature oxidation of the heat resistant Ni80Cr20 alloys is studied in order to increase the alloys life time at high temperature. The oxidation kinetic follows the parabolic behavior for both alloys Ni80Cr20-0 without reactive element and Ni80Cr20-Ce/La with reactive elements Ce/La. The presence of Ce/La elements strongly decreases the oxidation kinetic. Oxide layer is found to be very adhesive on the alloy containing the reactive elements by scratch test adhesive energy measurement. These results are discussed and correlated with the oxide microstructure, mechanical properties of oxide such stress, and chemical composition of oxide layer.

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来源
《Advanced Engineering Materials》 |2019年第7期|共6页
作者
Ateba Betanda Yanick; Afrounn Amina; Bousquet RichardRiblet Francoise;
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作者单位

Ctr Rech APERAM, Rue P Chevenard, F-58160 Imphy, France;

ESIREM Mat, Ave Alain Savary BP 47870, F-21078 Dijon, France;

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原文格式 PDF
正文语种英语
中图分类工程材料学;
关键词
Cr2O3 layer; high temperature oxidation; Ni80Cr20 alloy; reactive elements (RE) Ce and La; spallation;

Positive Effect of Mischmetal Ce/La (Cerium and Lanthanum) on High Temperature Oxidation of Ni80Cr20 Alloys

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