Electrochemical behavior of low-pressure plasma-sprayed Al-Cu-Fe-Cr quasicrystalline coating

Yongwang Kang; Chungen Zhou; Shengkai Gong; Huibin Xu

doi:10.1016/j.vacuum.2005.03.002

Electrochemical behavior of low-pressure plasma-sprayed Al-Cu-Fe-Cr quasicrystalline coating

Yongwang Kang
, Chungen Zhou
, Shengkai Gong
, Huibin Xu^*

^*Corresponding author for this work

School of Materials Science and Engineering

Beihang University

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

15 Scopus citations

Abstract

Al-Cu-Fe-Cr quasicrystalline coating was deposited on a substrate of stainless steel by low-pressure plasma spraying (LPPS) method. The corrosion behavior of such coating was studied by polarization in 1 mol/l H ₂SO₄ and 0.1 mol/l NaOH solutions at room temperature. The polarization curve shows that LPPS Al-Cu-Fe-Cr quasicrystalline coating can turn to passive state both in 1 mol/l H₂SO₄ solution and in 0.1 mol/l NaOH solution. The corrosion resistance of the coating is poorer than that of bulk quasicrystal in 0.1 mol/l NaOH solution. Also in strong alkaline solution the corrosion resistance of the coating is much poorer than single-phase austenitic stainless-steel 1Cr18Ni9Ti. In the later period of polarization, the Al₂O₃ layer formed on surface of the coating is destroyed by localized corrosion.

Original language	English
Pages (from-to)	148-154
Number of pages	7
Journal	Vacuum
Volume	79
Issue number	3-4
DOIs	https://doi.org/10.1016/j.vacuum.2005.03.002
State	Published - 19 Aug 2005

Keywords

Al-Cu-Fe-Cr quasicrystalline coating
Corrosion
Low-pressure plasma spray

Access to Document

10.1016/j.vacuum.2005.03.002

Cite this

@article{9797ec0821bd49fca573c60c9c9db533,

title = "Electrochemical behavior of low-pressure plasma-sprayed Al-Cu-Fe-Cr quasicrystalline coating",

abstract = "Al-Cu-Fe-Cr quasicrystalline coating was deposited on a substrate of stainless steel by low-pressure plasma spraying (LPPS) method. The corrosion behavior of such coating was studied by polarization in 1 mol/l H 2SO4 and 0.1 mol/l NaOH solutions at room temperature. The polarization curve shows that LPPS Al-Cu-Fe-Cr quasicrystalline coating can turn to passive state both in 1 mol/l H2SO4 solution and in 0.1 mol/l NaOH solution. The corrosion resistance of the coating is poorer than that of bulk quasicrystal in 0.1 mol/l NaOH solution. Also in strong alkaline solution the corrosion resistance of the coating is much poorer than single-phase austenitic stainless-steel 1Cr18Ni9Ti. In the later period of polarization, the Al2O3 layer formed on surface of the coating is destroyed by localized corrosion.",

keywords = "Al-Cu-Fe-Cr quasicrystalline coating, Corrosion, Low-pressure plasma spray",

author = "Yongwang Kang and Chungen Zhou and Shengkai Gong and Huibin Xu",

year = "2005",

month = aug,

day = "19",

doi = "10.1016/j.vacuum.2005.03.002",

language = "英语",

volume = "79",

pages = "148--154",

journal = "Vacuum",

issn = "0042-207X",

publisher = "Elsevier Ltd",

number = "3-4",

}

TY - JOUR

T1 - Electrochemical behavior of low-pressure plasma-sprayed Al-Cu-Fe-Cr quasicrystalline coating

AU - Kang, Yongwang

AU - Zhou, Chungen

AU - Gong, Shengkai

AU - Xu, Huibin

PY - 2005/8/19

Y1 - 2005/8/19

N2 - Al-Cu-Fe-Cr quasicrystalline coating was deposited on a substrate of stainless steel by low-pressure plasma spraying (LPPS) method. The corrosion behavior of such coating was studied by polarization in 1 mol/l H 2SO4 and 0.1 mol/l NaOH solutions at room temperature. The polarization curve shows that LPPS Al-Cu-Fe-Cr quasicrystalline coating can turn to passive state both in 1 mol/l H2SO4 solution and in 0.1 mol/l NaOH solution. The corrosion resistance of the coating is poorer than that of bulk quasicrystal in 0.1 mol/l NaOH solution. Also in strong alkaline solution the corrosion resistance of the coating is much poorer than single-phase austenitic stainless-steel 1Cr18Ni9Ti. In the later period of polarization, the Al2O3 layer formed on surface of the coating is destroyed by localized corrosion.

AB - Al-Cu-Fe-Cr quasicrystalline coating was deposited on a substrate of stainless steel by low-pressure plasma spraying (LPPS) method. The corrosion behavior of such coating was studied by polarization in 1 mol/l H 2SO4 and 0.1 mol/l NaOH solutions at room temperature. The polarization curve shows that LPPS Al-Cu-Fe-Cr quasicrystalline coating can turn to passive state both in 1 mol/l H2SO4 solution and in 0.1 mol/l NaOH solution. The corrosion resistance of the coating is poorer than that of bulk quasicrystal in 0.1 mol/l NaOH solution. Also in strong alkaline solution the corrosion resistance of the coating is much poorer than single-phase austenitic stainless-steel 1Cr18Ni9Ti. In the later period of polarization, the Al2O3 layer formed on surface of the coating is destroyed by localized corrosion.

KW - Al-Cu-Fe-Cr quasicrystalline coating

KW - Corrosion

KW - Low-pressure plasma spray

UR - https://www.scopus.com/pages/publications/22644438627

U2 - 10.1016/j.vacuum.2005.03.002

DO - 10.1016/j.vacuum.2005.03.002

M3 - 文章

AN - SCOPUS:22644438627

SN - 0042-207X

VL - 79

SP - 148

EP - 154

JO - Vacuum

JF - Vacuum

IS - 3-4

ER -

Electrochemical behavior of low-pressure plasma-sprayed Al-Cu-Fe-Cr quasicrystalline coating

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this