Influence of alloyed Fe on corrosion of Ni-Cr alloys in molten silicates and the effects of pre-oxidation treatment

Ya xin Xu; Wen ya Li; Xia wei Yang

doi:10.1016/j.corsci.2018.02.022

Influence of alloyed Fe on corrosion of Ni-Cr alloys in molten silicates and the effects of pre-oxidation treatment

Ya xin Xu, Wen ya Li, Xia wei Yang

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

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

7 Scopus citations

Abstract

The corrosion of Ni-Cr-xFe alloys (x = 6, 16, 25 wt.%) with a pre-oxidation treatment was studied in molten silicates at 1000 °C and 1050 °C. The microstructure of oxide scales following pre-oxidation treatment changes with an increase in Fe content. This content affects the mode of failure of the oxide scales at the beginning of corrosion. A failure mechanism of oxide scales is proposed, based on the microstructure evolution during corrosion. In addition, the temperature increase from 1000 °C to 1050 °C leads to an accelerated dissolution of the oxide scales without affecting the corrosion mode itself.

Original language	English
Pages (from-to)	179-188
Number of pages	10
Journal	Corrosion Science
Volume	134
DOIs	https://doi.org/10.1016/j.corsci.2018.02.022
State	Published - 15 Apr 2018

Keywords

A. Glass
A: Superalloys
B. EPMA
B. SEM
B. XRD
C. High-temperature corrosion

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10.1016/j.corsci.2018.02.022

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title = "Influence of alloyed Fe on corrosion of Ni-Cr alloys in molten silicates and the effects of pre-oxidation treatment",

abstract = "The corrosion of Ni-Cr-xFe alloys (x = 6, 16, 25 wt.%) with a pre-oxidation treatment was studied in molten silicates at 1000 °C and 1050 °C. The microstructure of oxide scales following pre-oxidation treatment changes with an increase in Fe content. This content affects the mode of failure of the oxide scales at the beginning of corrosion. A failure mechanism of oxide scales is proposed, based on the microstructure evolution during corrosion. In addition, the temperature increase from 1000 °C to 1050 °C leads to an accelerated dissolution of the oxide scales without affecting the corrosion mode itself.",

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doi = "10.1016/j.corsci.2018.02.022",

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T1 - Influence of alloyed Fe on corrosion of Ni-Cr alloys in molten silicates and the effects of pre-oxidation treatment

AU - Xu, Ya xin

AU - Li, Wen ya

AU - Yang, Xia wei

PY - 2018/4/15

Y1 - 2018/4/15

N2 - The corrosion of Ni-Cr-xFe alloys (x = 6, 16, 25 wt.%) with a pre-oxidation treatment was studied in molten silicates at 1000 °C and 1050 °C. The microstructure of oxide scales following pre-oxidation treatment changes with an increase in Fe content. This content affects the mode of failure of the oxide scales at the beginning of corrosion. A failure mechanism of oxide scales is proposed, based on the microstructure evolution during corrosion. In addition, the temperature increase from 1000 °C to 1050 °C leads to an accelerated dissolution of the oxide scales without affecting the corrosion mode itself.

AB - The corrosion of Ni-Cr-xFe alloys (x = 6, 16, 25 wt.%) with a pre-oxidation treatment was studied in molten silicates at 1000 °C and 1050 °C. The microstructure of oxide scales following pre-oxidation treatment changes with an increase in Fe content. This content affects the mode of failure of the oxide scales at the beginning of corrosion. A failure mechanism of oxide scales is proposed, based on the microstructure evolution during corrosion. In addition, the temperature increase from 1000 °C to 1050 °C leads to an accelerated dissolution of the oxide scales without affecting the corrosion mode itself.

KW - A. Glass

KW - A: Superalloys

KW - B. EPMA

KW - B. SEM

KW - B. XRD

KW - C. High-temperature corrosion

UR - http://www.scopus.com/inward/record.url?scp=85042381431&partnerID=8YFLogxK

U2 - 10.1016/j.corsci.2018.02.022

DO - 10.1016/j.corsci.2018.02.022

M3 - 文章

AN - SCOPUS:85042381431

SN - 0010-938X

VL - 134

SP - 179

EP - 188

JO - Corrosion Science

JF - Corrosion Science

ER -

Influence of alloyed Fe on corrosion of Ni-Cr alloys in molten silicates and the effects of pre-oxidation treatment

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