Corrosion behavior of Ni3Al-bonded TiC-based cermets in H2SO4 and NaOH solutions

Qiao Mao; Qingqing Yang; Weihao Xiong; Shengtao Li; Man Zhang; Linji Ruan

doi:10.1016/j.ceramint.2018.04.161

Corrosion behavior of Ni₃Al-bonded TiC-based cermets in H₂SO₄ and NaOH solutions

Qiao Mao
, Qingqing Yang
, Weihao Xiong
, Shengtao Li
, Man Zhang
, Linji Ruan

Huazhong University of Science and Technology

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

20 Scopus citations

Abstract

Corrosion behavior of multicomponent Ni₃Al-bonded Ti(C,N)-based cermets with various Ni₃Al contents and Ti(C_0.5,N_0.5) addition was investigated in 1 M H₂SO₄ and 1 M NaOH solutions, using immersion tests, potentiodynamic polarization measurements, XRD, SEM and XPS. In 1 M H₂SO₄ solution, corrosion process of all cermets consisted mainly of their binder phase dissolution, and during potentiodynamic polarization, their passivation and pseudo-passivation corresponded to passivation of their binder phase and ceramic grains, respectively. Corrosion potential and current density decreased with increasing Ni₃Al content, while corrosion potential increased and current density decreased with Ti(C_0.5,N_0.5) addition. In 1 M NaOH solution, corrosion process of all cermets consisted mainly of their ceramic grain dissolution, and during potentiodynamic polarization, their passivation and pseudo-passivation corresponded to passivation of their ceramic grains and binder phase, respectively. Corrosion potential increased and current density decreased with increasing Ni₃Al content, while corrosion potential decreased and current density increased with Ti(C_0.5,N_0.5) addition.

Original language	English
Pages (from-to)	13303-13312
Number of pages	10
Journal	Ceramics International
Volume	44
Issue number	11
DOIs	https://doi.org/10.1016/j.ceramint.2018.04.161
State	Published - 1 Aug 2018
Externally published	Yes

Keywords

Corrosion behavior
HSO solution
NaOH solution
NiAl
Ti(C,N)-based cermets

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10.1016/j.ceramint.2018.04.161

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title = "Corrosion behavior of Ni3Al-bonded TiC-based cermets in H2SO4 and NaOH solutions",

abstract = "Corrosion behavior of multicomponent Ni3Al-bonded Ti(C,N)-based cermets with various Ni3Al contents and Ti(C0.5,N0.5) addition was investigated in 1 M H2SO4 and 1 M NaOH solutions, using immersion tests, potentiodynamic polarization measurements, XRD, SEM and XPS. In 1 M H2SO4 solution, corrosion process of all cermets consisted mainly of their binder phase dissolution, and during potentiodynamic polarization, their passivation and pseudo-passivation corresponded to passivation of their binder phase and ceramic grains, respectively. Corrosion potential and current density decreased with increasing Ni3Al content, while corrosion potential increased and current density decreased with Ti(C0.5,N0.5) addition. In 1 M NaOH solution, corrosion process of all cermets consisted mainly of their ceramic grain dissolution, and during potentiodynamic polarization, their passivation and pseudo-passivation corresponded to passivation of their ceramic grains and binder phase, respectively. Corrosion potential increased and current density decreased with increasing Ni3Al content, while corrosion potential decreased and current density increased with Ti(C0.5,N0.5) addition.",

keywords = "Corrosion behavior, HSO solution, NaOH solution, NiAl, Ti(C,N)-based cermets",

author = "Qiao Mao and Qingqing Yang and Weihao Xiong and Shengtao Li and Man Zhang and Linji Ruan",

note = "Publisher Copyright: {\textcopyright} 2018 Elsevier Ltd and Techna Group S.r.l.",

year = "2018",

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doi = "10.1016/j.ceramint.2018.04.161",

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T1 - Corrosion behavior of Ni3Al-bonded TiC-based cermets in H2SO4 and NaOH solutions

AU - Mao, Qiao

AU - Yang, Qingqing

AU - Xiong, Weihao

AU - Li, Shengtao

AU - Zhang, Man

AU - Ruan, Linji

PY - 2018/8/1

Y1 - 2018/8/1

N2 - Corrosion behavior of multicomponent Ni3Al-bonded Ti(C,N)-based cermets with various Ni3Al contents and Ti(C0.5,N0.5) addition was investigated in 1 M H2SO4 and 1 M NaOH solutions, using immersion tests, potentiodynamic polarization measurements, XRD, SEM and XPS. In 1 M H2SO4 solution, corrosion process of all cermets consisted mainly of their binder phase dissolution, and during potentiodynamic polarization, their passivation and pseudo-passivation corresponded to passivation of their binder phase and ceramic grains, respectively. Corrosion potential and current density decreased with increasing Ni3Al content, while corrosion potential increased and current density decreased with Ti(C0.5,N0.5) addition. In 1 M NaOH solution, corrosion process of all cermets consisted mainly of their ceramic grain dissolution, and during potentiodynamic polarization, their passivation and pseudo-passivation corresponded to passivation of their ceramic grains and binder phase, respectively. Corrosion potential increased and current density decreased with increasing Ni3Al content, while corrosion potential decreased and current density increased with Ti(C0.5,N0.5) addition.

AB - Corrosion behavior of multicomponent Ni3Al-bonded Ti(C,N)-based cermets with various Ni3Al contents and Ti(C0.5,N0.5) addition was investigated in 1 M H2SO4 and 1 M NaOH solutions, using immersion tests, potentiodynamic polarization measurements, XRD, SEM and XPS. In 1 M H2SO4 solution, corrosion process of all cermets consisted mainly of their binder phase dissolution, and during potentiodynamic polarization, their passivation and pseudo-passivation corresponded to passivation of their binder phase and ceramic grains, respectively. Corrosion potential and current density decreased with increasing Ni3Al content, while corrosion potential increased and current density decreased with Ti(C0.5,N0.5) addition. In 1 M NaOH solution, corrosion process of all cermets consisted mainly of their ceramic grain dissolution, and during potentiodynamic polarization, their passivation and pseudo-passivation corresponded to passivation of their ceramic grains and binder phase, respectively. Corrosion potential increased and current density decreased with increasing Ni3Al content, while corrosion potential decreased and current density increased with Ti(C0.5,N0.5) addition.

KW - Corrosion behavior

KW - HSO solution

KW - NaOH solution

KW - NiAl

KW - Ti(C,N)-based cermets

UR - https://www.scopus.com/pages/publications/85046146719

U2 - 10.1016/j.ceramint.2018.04.161

DO - 10.1016/j.ceramint.2018.04.161

M3 - 文章

AN - SCOPUS:85046146719

SN - 0272-8842

VL - 44

SP - 13303

EP - 13312

JO - Ceramics International

JF - Ceramics International

IS - 11

ER -

Corrosion behavior of Ni₃Al-bonded TiC-based cermets in H₂SO₄ and NaOH solutions

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Keywords

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