Corrosion of MCrAlY: Pt composites prepared by spark plasma sintering

被引：2
|
作者：
Serrano Perez, Edgar [1 ]
Martinez Gutierrez, Hugo [2 ]
Juarez Lopez, Fernando [3 ]
机构：
[1] Univ Tecnol Mexico, Mexico City, DF, Mexico
[2] Inst Politecn Nacl, CNMN, Mexico City, DF, Mexico
[3] Inst Politecn Nacl, CIITEC, Cerrada Cecati S-N, Mexico City 02250, DF, Mexico
来源：
CORROSION ENGINEERING SCIENCE AND TECHNOLOGY | 2018年 / 53卷 / 08期
关键词：
MCrAlY; sintering; cyclic oxidation; CYCLIC OXIDATION BEHAVIOR; HIGH-TEMPERATURE OXIDATION; PROTECTIVE OXIDE SCALES; HEAT-RESISTANT STEELS; THERMAL-EXPANSION; PLATINUM; NI; CRACKING; SUPERALLOYS; COATINGS;
D O I：
10.1080/1478422X.2018.1511314
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Cyclic oxidation tests of sintered MCrAlY:Pt composites were carried out at temperatures of 1223 and 1273 K. Composite tablets were previously produced by spark plasma sintering. To assess an effect of platinum dispersed, microstructural characterisation was performed on the tablets before and after the cyclic oxidation treatment. Scanning electron microscopy analysis of the oxide layer showed that the presence of typical alpha-Al2O3 and NiAl2O4 spinel had structure columnar and equiaxial in both samples. Fine sintered microstructure and addition of Pt into the MCrAlY matrix enhanced the resistance of the material to cyclic oxidation.
引用
收藏
页码：539 / 548
页数：10
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