High-Temperature Oxidation of MCrAlY Coating Modified by Alumina Deposited by an MOCVD Process

被引：1
|
作者：
Vicente-Mendoza, Melquisedec [1 ]
Mora-Garcia, Alma [2 ]
Munoz-Saldana, Juan [2 ]
Juarez-Lopez, Fernando [1 ]
机构：
[1] Inst Politecn Nacl, CIITEC, Cerrada Cecati, Mexico City 02250, Sta Catarina, Mexico
[2] Inst Politecn Nacl, CINVESTAV, Libramiento Norponiente 2000, Santiago De Queretaro 76230, Qro, Mexico
来源：
HIGH TEMPERATURE CORROSION OF MATERIALS | 2023年 / 100卷 / 3-4期
关键词：
HVOF; MCrAlY; Alumina; MOCVD; THERMAL-BARRIER COATINGS; CYCLIC OXIDATION; BEHAVIOR; AL2O3; HVOF; GROWTH; RESISTANT; ALLOYS;
D O I：
10.1007/s11085-023-10172-4
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
Spray parameters were fixed to depositing a MCrAlY coating by HVOF process on IN-708 substrate. The deposited coatings exhibited a microstructure with characteristic splats and & beta; and & gamma; phases. An MOCVD process was subsequently carried out to deposit a thin alumina layer on the sprayed MCrAlY coating. Cyclic oxidation tests were conducted at high temperature on the alumina/MCrAlY coating system. Both SEM and XRD analyses were used to characterize the thermally grown oxide after cyclic oxidation. A kinetic analysis was done to determinate the behaviour of the alumina/MCrAlY coating system during oxidation.
引用
收藏
页码：193 / 207
页数：15
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