Cold spray deposition of Cr2AlC MAX phase for coatings and bond-coat layers

被引：45

作者：

Go, T. ^{[1
]}

Sohn, Y. J. ^{[1
]}

Mauer, G. ^{[1
]}

Vassen, R. ^{[1
]}

Gonzalez-Julian, J. ^{[1
]}

机构：

[1] Forschungszentrum Julich, Inst Energy & Climate Res Mat Synth & Proc IEK 1, D-52425 Julich, Germany

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2019年 / 39卷 / 04期

关键词：

MAX phases; Cr2AlC; Coatings; Bond-coat; Cold spray; ENVIRONMENTAL RESISTANCE; TI2ALC; OXIDATION; POWDERS; TBCS;

D O I：

10.1016/j.jeurceramsoc.2018.11.035

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Highly pure Cr2AlC powders were synthesized and deposited for the first time by cold spray technology on stainless steel substrates. The Cr2AlC coatings were relative dense, up to 91%, and present high purity ( > 98%) since only small traces of Cr2Al, Al2O3 and Cr2O3 were detected by XRD, SEM and EDX. The microstructure of the coatings is homogeneous, although some preferential orientation in the basal plane was observed by XRD pole figures. The adhesion between the coating and the substrate is strong, and compressive residual stresses up to 300 MPa in the coating were determined by XRD. Furthermore, a conventional YSZ Thermal Barrier Coating (TBCs) was deposited by Atmospheric Plasma Spray (APS) on top of the cold sprayed Cr2AlC coating in order to demonstrate the processing feasibility of Cr2AlC MAX phases as a bond-coat layer.

引用

页码：860 / 867

页数：8

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