TEM and EBSD investigation of a Re-doped β-NiAl coating on a Ni-based single crystal superalloy

被引：6
|
作者：
Li, W. [1 ]
Li, Y. T. [1 ,2 ]
Zhang, W. L. [1 ,2 ]
Fu, L. B. [1 ,2 ]
Pen, X. [1 ,2 ]
Jiang, S. M. [1 ]
Gong, J. [1 ]
Sun, C. [1 ]
机构：
[1] Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Peoples R China
[2] Univ Sci & Technol China, Sch Mat Sci & Engn, 72 Wenhua Rd, Shenyang 110016, Peoples R China
来源：
MATERIALS LETTERS | 2022年 / 306卷
关键词：
Microstructure; Structural; Nanoparticles; Rhenium; beta-NiAl coating; OXIDATION; IMPROVEMENT; BEHAVIOR; CR;
D O I：
10.1016/j.matlet.2021.130932
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
To figure out the microstructure and precipitation phases of a Re doped beta-NiAl coating, the electron backscatter diffraction (EBSD) and transmission electron microscopy (TEM) were both used. Re-doped beta-NiAl coating was composed of outer coarser beta-NiAl grains with nanometer sized gamma-Re precipitates, inner tiny 8-NiAl grains with submicron sized alpha-W phases and bottom interdiffusion zone (IDZ, consisted of strip TCP and 8-NiAl phases). Moreover, these gamma-Re and alpha-W nanoparticle phases were not only aggregated at beta-NiAl grain boundary but also appeared within the grains.
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页数：4
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