Isothermal oxidation resistance comparison between air plasma sprayed, vacuum plasma sprayed and high velocity oxygen fuel sprayed CoNiCrAlY bond coats

被引：58

作者：

Di Ferdinando, Martina ^{[1
]}

Fossati, Alessio ^{[1
,2
]}

Lavacchi, Alessandro ^{[1
]}

Bardi, Ugo ^{[1
]}

Borgioli, Francesca ^{[2
]}

Borri, Claudia ^{[1
]}

Giolli, Carlo ^{[3
]}

Scrivani, Andrea ^{[3
]}

机构：

[1] Consorzio Interuniv Nazl Sci & Tecnol Mat, INSTM, I-50121 Florence, Italy

[2] Univ Firenze, Dipartimento Ingn Civile, I-50139 Florence, Italy

[3] Turbocoating SpA, I-43040 Parma, Italy

来源：

SURFACE & COATINGS TECHNOLOGY | 2010年 / 204卷 / 15期

关键词：

Thermal barrier coating; Thermal spray processing; Oxidation; Superalloy; Protective coating; THERMAL BARRIER COATINGS; MCRALY COATINGS; BEHAVIOR; HVOF;

D O I：

10.1016/j.surfcoat.2010.01.031

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Commercial CoNiCrAlY powders with the same chemical composition were sprayed by vacuum plasma spraying (VPS), air plasma spraying (APS) and high velocity oxygen fuel (HVOF) onto Hastelloy X superalloy substrates obtaining coatings of comparable thickness. After coating, samples were maintained at 1273 K in air for different periods up to 3000 h. Morphological, microstructural and compositional analyses were performed in order to assess the high temperature oxidation resistance provided by the different spraying systems. HVOF technique provided bond coats with higher oxidation resistance compared to APS and VPS. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：2499 / 2503

页数：5

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