Study on microstructural characterization of thermal barrier coatings for metal atomizing jet

Yang Gao; Hong Mei Wang; Feng Pan; Yong Liang; Chang Xu Shi

Study on microstructural characterization of thermal barrier coatings for metal atomizing jet

Yang Gao^*, Hong Mei Wang, Feng Pan, Yong Liang, Chang Xu Shi

^*Corresponding author for this work

School of Physics

Research output: Contribution to journal › Article › peer-review

Abstract

A new type of thermal barrier coatings was developed for metal atomizing jet on stainless steel. The method involved precoating by a plasma-spraying and subsequent laser remelting. A 5kW CW CO₂ laser was used to produce NiCoCrAlY bond coating and zirconia ceramic coating with double remelting. The results show that the NiCoCrAlY alloy coatings are diluted by the substrate, and are found chemical composition and microstructure excursion. The microstructure of ZrO₂ coatings with TiO₂-Al-Ti dopants is oriented columnar grains, whose space between dendrites is respectively 2.3μm of top layer and 3.8μm of subsurface layer.

Original language	English
Pages (from-to)	27-29
Number of pages	3
Journal	Cailiao Gongcheng/Journal of Materials Engineering
Issue number	1
Publication status	Published - Jan 2003

Keywords

Columnar grains
Dendrites
Excursion
Laser cladding
Microstructure

Cite this

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title = "Study on microstructural characterization of thermal barrier coatings for metal atomizing jet",

abstract = "A new type of thermal barrier coatings was developed for metal atomizing jet on stainless steel. The method involved precoating by a plasma-spraying and subsequent laser remelting. A 5kW CW CO2 laser was used to produce NiCoCrAlY bond coating and zirconia ceramic coating with double remelting. The results show that the NiCoCrAlY alloy coatings are diluted by the substrate, and are found chemical composition and microstructure excursion. The microstructure of ZrO2 coatings with TiO2-Al-Ti dopants is oriented columnar grains, whose space between dendrites is respectively 2.3μm of top layer and 3.8μm of subsurface layer.",

keywords = "Columnar grains, Dendrites, Excursion, Laser cladding, Microstructure",

author = "Yang Gao and Wang, {Hong Mei} and Feng Pan and Yong Liang and Shi, {Chang Xu}",

year = "2003",

month = jan,

language = "English",

pages = "27--29",

journal = "Cailiao Gongcheng/Journal of Materials Engineering",

issn = "1001-4381",

publisher = "Beijing Institute of Aeronautical Materials (BIAM)",

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T1 - Study on microstructural characterization of thermal barrier coatings for metal atomizing jet

AU - Gao, Yang

AU - Wang, Hong Mei

AU - Pan, Feng

AU - Liang, Yong

AU - Shi, Chang Xu

PY - 2003/1

Y1 - 2003/1

N2 - A new type of thermal barrier coatings was developed for metal atomizing jet on stainless steel. The method involved precoating by a plasma-spraying and subsequent laser remelting. A 5kW CW CO2 laser was used to produce NiCoCrAlY bond coating and zirconia ceramic coating with double remelting. The results show that the NiCoCrAlY alloy coatings are diluted by the substrate, and are found chemical composition and microstructure excursion. The microstructure of ZrO2 coatings with TiO2-Al-Ti dopants is oriented columnar grains, whose space between dendrites is respectively 2.3μm of top layer and 3.8μm of subsurface layer.

AB - A new type of thermal barrier coatings was developed for metal atomizing jet on stainless steel. The method involved precoating by a plasma-spraying and subsequent laser remelting. A 5kW CW CO2 laser was used to produce NiCoCrAlY bond coating and zirconia ceramic coating with double remelting. The results show that the NiCoCrAlY alloy coatings are diluted by the substrate, and are found chemical composition and microstructure excursion. The microstructure of ZrO2 coatings with TiO2-Al-Ti dopants is oriented columnar grains, whose space between dendrites is respectively 2.3μm of top layer and 3.8μm of subsurface layer.

KW - Columnar grains

KW - Dendrites

KW - Excursion

KW - Laser cladding

KW - Microstructure

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JO - Cailiao Gongcheng/Journal of Materials Engineering

JF - Cailiao Gongcheng/Journal of Materials Engineering

IS - 1

ER -

Study on microstructural characterization of thermal barrier coatings for metal atomizing jet

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Keywords

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