Oxidation behaviour of (Ni,Pt)Al coating with an in-situ formed α-W diffusion barrier: The effect of the diffusion barrier thickness

被引：3
|
作者：
Li, W. B. [1 ,2 ]
Ren, S. X.
Zhang, P. [2 ,3 ]
Wang, Q. W. [2 ,3 ]
Yang, Y. F. [1 ,2 ,3 ,4 ]
Ren, P. [1 ,2 ,3 ]
Li, W. [2 ]
机构：
[1] Power Co Ltd Res Inst, Changsha 410000, Peoples R China
[2] Jinan Univ, Inst Adv Wear & Corros Resistant & Funct Mat, Guangzhou 510632, Peoples R China
[3] Guangdong Prov Engn & Technol Res Ctr Corros Resis, Guangzhou 510632, Peoples R China
[4] Jinan Univ, Shaoguan Res Inst, Shaoguan 512029, Peoples R China
来源：
SURFACE & COATINGS TECHNOLOGY | 2023年 / 474卷
关键词：
Diffusion barrier; Platinum; Bond coat; Inter-diffusion; Oxidation; MODIFIED ALUMINIDE COATINGS; SINGLE-CRYSTAL SUPERALLOY; BASE; MICROSTRUCTURE; RE; RESISTANCE; PHASE; FILMS; TA;
D O I：
10.1016/j.surfcoat.2023.130052
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
(Ni,Pt)Al coating with varying thicknesses of alpha-W-based diffusion barrier (DB) were prepared by adding various thicknesses of Ni-W plating layer. The oxidation performance of the DB-contained coatings was compared to that of the normal (Ni,Pt)Al coating at 1100 degrees C. With the thicker of DB, the inter-diffusion of Ni, Al as well as the refractory elements was more effectively inhibited. Moreover, better oxidation resistance was observed on (Ni, Pt)Al coating with a thicker DB, exhibiting a lower oxidation rate, flatter surface rumpling extent and slower phase degradation rate. The effects of DB on the inter-diffusion behaviour and oxidation performance of the (Ni, Pt)Al coating are discussed, and the degradation mechanism of the DB is proposed.
引用
收藏
页数：14
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