Oxidation behavior of laser remelted plasma sprayed NiCrAlY and NiCrAlY-Al2O3 coatings

Y. N. Wu; G. Zhang; Z. C. Feng; B. C. Zhang; Y. Liang; F. J. Liu

doi:10.1016/S0257-8972(00)01102-6

Oxidation behavior of laser remelted plasma sprayed NiCrAlY and NiCrAlY-Al₂O₃ coatings

Y. N. Wu^*
, G. Zhang
, Z. C. Feng
, B. C. Zhang
, Y. Liang
, F. J. Liu

^*Corresponding author for this work

CAS - Institute of Metal Research
China Aviation Industry Corporation

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

91 Scopus citations

Abstract

Two types of plasma sprayed coatings (NiCrAlY and NiCrAlY-Al₂O₃) were remelted by continuous wave CO₂ laser. A homogeneous dense remelted layer without voids, cavities, unmelted particles and microcracks was formed. As a result of isothermal oxidation tests at 1000°C, the weight gains of laser remelted coatings, especially laser remelted NiCrAlY-Al₂O₃ coatings, were obviously lower than plasma sprayed coatings. The effects of both laser remelting and incorporation of Al₂O₃ second phase in NiCiAlY matrix on high temperature oxidation resistance of plasma sprayed coatings was discussed.

Original language	English
Pages (from-to)	56-60
Number of pages	5
Journal	Surface and Coatings Technology
Volume	138
Issue number	1
DOIs	https://doi.org/10.1016/S0257-8972(00)01102-6
State	Published - 2 Apr 2001
Externally published	Yes

Keywords

NiCrAlY-AlO laser
Oxidation resistance
Plasma sprayed

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10.1016/S0257-8972(00)01102-6

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title = "Oxidation behavior of laser remelted plasma sprayed NiCrAlY and NiCrAlY-Al2O3 coatings",

abstract = "Two types of plasma sprayed coatings (NiCrAlY and NiCrAlY-Al2O3) were remelted by continuous wave CO2 laser. A homogeneous dense remelted layer without voids, cavities, unmelted particles and microcracks was formed. As a result of isothermal oxidation tests at 1000°C, the weight gains of laser remelted coatings, especially laser remelted NiCrAlY-Al2O3 coatings, were obviously lower than plasma sprayed coatings. The effects of both laser remelting and incorporation of Al2O3 second phase in NiCiAlY matrix on high temperature oxidation resistance of plasma sprayed coatings was discussed.",

keywords = "NiCrAlY-AlO laser, Oxidation resistance, Plasma sprayed",

author = "Wu, \{Y. N.\} and G. Zhang and Feng, \{Z. C.\} and Zhang, \{B. C.\} and Y. Liang and Liu, \{F. J.\}",

year = "2001",

month = apr,

day = "2",

doi = "10.1016/S0257-8972(00)01102-6",

language = "英语",

volume = "138",

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journal = "Surface and Coatings Technology",

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publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Oxidation behavior of laser remelted plasma sprayed NiCrAlY and NiCrAlY-Al2O3 coatings

AU - Wu, Y. N.

AU - Zhang, G.

AU - Feng, Z. C.

AU - Zhang, B. C.

AU - Liang, Y.

AU - Liu, F. J.

PY - 2001/4/2

Y1 - 2001/4/2

N2 - Two types of plasma sprayed coatings (NiCrAlY and NiCrAlY-Al2O3) were remelted by continuous wave CO2 laser. A homogeneous dense remelted layer without voids, cavities, unmelted particles and microcracks was formed. As a result of isothermal oxidation tests at 1000°C, the weight gains of laser remelted coatings, especially laser remelted NiCrAlY-Al2O3 coatings, were obviously lower than plasma sprayed coatings. The effects of both laser remelting and incorporation of Al2O3 second phase in NiCiAlY matrix on high temperature oxidation resistance of plasma sprayed coatings was discussed.

AB - Two types of plasma sprayed coatings (NiCrAlY and NiCrAlY-Al2O3) were remelted by continuous wave CO2 laser. A homogeneous dense remelted layer without voids, cavities, unmelted particles and microcracks was formed. As a result of isothermal oxidation tests at 1000°C, the weight gains of laser remelted coatings, especially laser remelted NiCrAlY-Al2O3 coatings, were obviously lower than plasma sprayed coatings. The effects of both laser remelting and incorporation of Al2O3 second phase in NiCiAlY matrix on high temperature oxidation resistance of plasma sprayed coatings was discussed.

KW - NiCrAlY-AlO laser

KW - Oxidation resistance

KW - Plasma sprayed

UR - https://www.scopus.com/pages/publications/0035795066

U2 - 10.1016/S0257-8972(00)01102-6

DO - 10.1016/S0257-8972(00)01102-6

M3 - 文章

AN - SCOPUS:0035795066

SN - 0257-8972

VL - 138

SP - 56

EP - 60

JO - Surface and Coatings Technology

JF - Surface and Coatings Technology

IS - 1

ER -

Oxidation behavior of laser remelted plasma sprayed NiCrAlY and NiCrAlY-Al₂O₃ coatings

Abstract

Keywords

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