Effect of crystallographic orientation on the corrosion resistance of Ni-based single crystal superalloys

Yang Yanqiu; Wen Zhixun; Zhao Yanchao; Wang Jiapo; Li Zhenwei; Yue Zhufeng

doi:10.1016/j.corsci.2020.108643

Effect of crystallographic orientation on the corrosion resistance of Ni-based single crystal superalloys

Yang Yanqiu, Wen Zhixun, Zhao Yanchao, Wang Jiapo, Li Zhenwei, Yue Zhufeng

School of Mechanics,Civil Engineering and Architecture

Northwestern Polytechnical University Xian

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

75 Scopus citations

Abstract

The corrosion behaviour and passive films formed on Ni-based single crystal superalloys with different orientations were investigated through the electrochemical testing and microstructural analysis. The results show that the corrosion rates of the different planes increases in the order of (001) < (111) < (011), which can be attributed to the higher equivalent atomic packing density and more compact products on the (001) plane. A parameter R_cp related to product composition is introduced to quantitatively describe the corrosion resistance of the samples. Finally, the mechanism is proposed to explain the orientation-dependent corrosion behaviour.

Original language	English
Article number	108643
Journal	Corrosion Science
Volume	170
DOIs	https://doi.org/10.1016/j.corsci.2020.108643
State	Published - 1 Jul 2020

Keywords

Corrosion
Crystal orientation
Ni-based
Passive film
XPS
single crystals

Access to Document

10.1016/j.corsci.2020.108643

Cite this

@article{866a38f8f41440b0b4c58c3122698cba,

title = "Effect of crystallographic orientation on the corrosion resistance of Ni-based single crystal superalloys",

abstract = "The corrosion behaviour and passive films formed on Ni-based single crystal superalloys with different orientations were investigated through the electrochemical testing and microstructural analysis. The results show that the corrosion rates of the different planes increases in the order of (001) < (111) < (011), which can be attributed to the higher equivalent atomic packing density and more compact products on the (001) plane. A parameter Rcp related to product composition is introduced to quantitatively describe the corrosion resistance of the samples. Finally, the mechanism is proposed to explain the orientation-dependent corrosion behaviour.",

keywords = "Corrosion, Crystal orientation, Ni-based, Passive film, XPS, single crystals",

author = "Yang Yanqiu and Wen Zhixun and Zhao Yanchao and Wang Jiapo and Li Zhenwei and Yue Zhufeng",

note = "Publisher Copyright: {\textcopyright} 2020 Elsevier Ltd",

year = "2020",

month = jul,

day = "1",

doi = "10.1016/j.corsci.2020.108643",

language = "英语",

volume = "170",

journal = "Corrosion Science",

issn = "0010-938X",

publisher = "Elsevier Ltd",

}

TY - JOUR

T1 - Effect of crystallographic orientation on the corrosion resistance of Ni-based single crystal superalloys

AU - Yanqiu, Yang

AU - Zhixun, Wen

AU - Yanchao, Zhao

AU - Jiapo, Wang

AU - Zhenwei, Li

AU - Zhufeng, Yue

PY - 2020/7/1

Y1 - 2020/7/1

N2 - The corrosion behaviour and passive films formed on Ni-based single crystal superalloys with different orientations were investigated through the electrochemical testing and microstructural analysis. The results show that the corrosion rates of the different planes increases in the order of (001) < (111) < (011), which can be attributed to the higher equivalent atomic packing density and more compact products on the (001) plane. A parameter Rcp related to product composition is introduced to quantitatively describe the corrosion resistance of the samples. Finally, the mechanism is proposed to explain the orientation-dependent corrosion behaviour.

AB - The corrosion behaviour and passive films formed on Ni-based single crystal superalloys with different orientations were investigated through the electrochemical testing and microstructural analysis. The results show that the corrosion rates of the different planes increases in the order of (001) < (111) < (011), which can be attributed to the higher equivalent atomic packing density and more compact products on the (001) plane. A parameter Rcp related to product composition is introduced to quantitatively describe the corrosion resistance of the samples. Finally, the mechanism is proposed to explain the orientation-dependent corrosion behaviour.

KW - Corrosion

KW - Crystal orientation

KW - Ni-based

KW - Passive film

KW - XPS

KW - single crystals

UR - http://www.scopus.com/inward/record.url?scp=85083008993&partnerID=8YFLogxK

U2 - 10.1016/j.corsci.2020.108643

DO - 10.1016/j.corsci.2020.108643

M3 - 文章

AN - SCOPUS:85083008993

SN - 0010-938X

VL - 170

JO - Corrosion Science

JF - Corrosion Science

M1 - 108643

ER -

Effect of crystallographic orientation on the corrosion resistance of Ni-based single crystal superalloys

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this