Corrosion behavior of laser melting-deposited γ/Mo2Ni3Si metal silicide alloy

Yawei Xu; Huaming Wang

Corrosion behavior of laser melting-deposited γ/Mo₂Ni₃Si metal silicide alloy

Yawei Xu^*
, Huaming Wang

^*Corresponding author for this work

School of Materials Science and Engineering

Beihang University

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

3 Scopus citations

Abstract

The corrosion behavior of Laser melting-deposited γ/Mo₂Ni₃Si alloy consisting of Mo₂Ni₃Si primary dendrites and Mo₂Ni₃Si/γ eutectic matrix in different mediums were investigated by polarization curve, Tafel Plot, EIS and immersion corrosion. Results showed that the alloy has excellent corrosion resistance in NaOH solution of 1 mol/L owing to the formation of stable passivation film. Unstable passivation film was formed in H₂SO₄ solution of 1 mol/L. No passivation occurred in neutral or acid solutions containing Cl^-. The alloy exhibited very poor corrosion resistance during the immersion test in HCl solution of 1 mol/L due to the preverential phase-boundary corrosion by Cl^-.

Original language	English
Pages (from-to)	660-664
Number of pages	5
Journal	Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
Volume	36
Issue number	4
State	Published - Apr 2007

Keywords

Corrosion
EIS
Immersion corrosion
Metal silicide
Polarization curve

Cite this

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title = "Corrosion behavior of laser melting-deposited γ/Mo2Ni3Si metal silicide alloy",

abstract = "The corrosion behavior of Laser melting-deposited γ/Mo2Ni3Si alloy consisting of Mo2Ni3Si primary dendrites and Mo2Ni3Si/γ eutectic matrix in different mediums were investigated by polarization curve, Tafel Plot, EIS and immersion corrosion. Results showed that the alloy has excellent corrosion resistance in NaOH solution of 1 mol/L owing to the formation of stable passivation film. Unstable passivation film was formed in H2SO4 solution of 1 mol/L. No passivation occurred in neutral or acid solutions containing Cl-. The alloy exhibited very poor corrosion resistance during the immersion test in HCl solution of 1 mol/L due to the preverential phase-boundary corrosion by Cl-.",

keywords = "Corrosion, EIS, Immersion corrosion, Metal silicide, Polarization curve",

author = "Yawei Xu and Huaming Wang",

year = "2007",

month = apr,

language = "英语",

volume = "36",

pages = "660--664",

journal = "Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering",

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TY - JOUR

T1 - Corrosion behavior of laser melting-deposited γ/Mo2Ni3Si metal silicide alloy

AU - Xu, Yawei

AU - Wang, Huaming

PY - 2007/4

Y1 - 2007/4

N2 - The corrosion behavior of Laser melting-deposited γ/Mo2Ni3Si alloy consisting of Mo2Ni3Si primary dendrites and Mo2Ni3Si/γ eutectic matrix in different mediums were investigated by polarization curve, Tafel Plot, EIS and immersion corrosion. Results showed that the alloy has excellent corrosion resistance in NaOH solution of 1 mol/L owing to the formation of stable passivation film. Unstable passivation film was formed in H2SO4 solution of 1 mol/L. No passivation occurred in neutral or acid solutions containing Cl-. The alloy exhibited very poor corrosion resistance during the immersion test in HCl solution of 1 mol/L due to the preverential phase-boundary corrosion by Cl-.

AB - The corrosion behavior of Laser melting-deposited γ/Mo2Ni3Si alloy consisting of Mo2Ni3Si primary dendrites and Mo2Ni3Si/γ eutectic matrix in different mediums were investigated by polarization curve, Tafel Plot, EIS and immersion corrosion. Results showed that the alloy has excellent corrosion resistance in NaOH solution of 1 mol/L owing to the formation of stable passivation film. Unstable passivation film was formed in H2SO4 solution of 1 mol/L. No passivation occurred in neutral or acid solutions containing Cl-. The alloy exhibited very poor corrosion resistance during the immersion test in HCl solution of 1 mol/L due to the preverential phase-boundary corrosion by Cl-.

KW - Corrosion

KW - EIS

KW - Immersion corrosion

KW - Metal silicide

KW - Polarization curve

UR - https://www.scopus.com/pages/publications/34250021348

M3 - 文章

AN - SCOPUS:34250021348

SN - 1002-185X

VL - 36

SP - 660

EP - 664

JO - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering

JF - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering

IS - 4

ER -

Corrosion behavior of laser melting-deposited γ/Mo₂Ni₃Si metal silicide alloy

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Keywords

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