Study on the hot corrosion-creep failure mechanism of Ni-based single crystal superalloy considering the stress dependence

Y. Q. Yang; Y. C. Zhao; Z. X. Wen; J. J. Wang; M. Li; H. Q. Pei; Z. F. Yue

doi:10.1016/j.msea.2024.146350

Study on the hot corrosion-creep failure mechanism of Ni-based single crystal superalloy considering the stress dependence

Y. Q. Yang
, Y. C. Zhao
, Z. X. Wen
, J. J. Wang
, M. Li
, H. Q. Pei
, Z. F. Yue

School of Mechanics,Civil Engineering and Architecture

Northwestern Polytechnical University Xian
Beihang University
Chang'an University

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

15 Scopus citations

Abstract

The accelerated creep failure of Ni-based single crystal superalloy by hot corrosion is confirmed by creep tests at 900 °C/550 MPa–400MPa in air and salt environments. The analysis of creep curve, microstructure and fracture type shows that there are obvious differences in hot corrosion-creep behavior under high, middle and low creep stress conditions, indicating that there is the stress dependence between the influence of hot corrosion on the creep properties of the alloy. Hot corrosion accelerates creep failure of Ni-based single crystal superalloy by decreasing the deformation resistance, reducing the effective stress area, and affecting the creep fracture mode.

Original language	English
Article number	146350
Journal	Materials Science and Engineering: A
Volume	897
DOIs	https://doi.org/10.1016/j.msea.2024.146350
State	Published - Apr 2024

Keywords

Creep
Failure mechanism
Hot corrosion
Ni-based single crystal superalloy
Stress dependence

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10.1016/j.msea.2024.146350

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title = "Study on the hot corrosion-creep failure mechanism of Ni-based single crystal superalloy considering the stress dependence",

abstract = "The accelerated creep failure of Ni-based single crystal superalloy by hot corrosion is confirmed by creep tests at 900 °C/550 MPa–400MPa in air and salt environments. The analysis of creep curve, microstructure and fracture type shows that there are obvious differences in hot corrosion-creep behavior under high, middle and low creep stress conditions, indicating that there is the stress dependence between the influence of hot corrosion on the creep properties of the alloy. Hot corrosion accelerates creep failure of Ni-based single crystal superalloy by decreasing the deformation resistance, reducing the effective stress area, and affecting the creep fracture mode.",

keywords = "Creep, Failure mechanism, Hot corrosion, Ni-based single crystal superalloy, Stress dependence",

author = "Yang, \{Y. Q.\} and Zhao, \{Y. C.\} and Wen, \{Z. X.\} and Wang, \{J. J.\} and M. Li and Pei, \{H. Q.\} and Yue, \{Z. F.\}",

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year = "2024",

month = apr,

doi = "10.1016/j.msea.2024.146350",

language = "英语",

volume = "897",

journal = "Materials Science and Engineering: A",

issn = "0921-5093",

publisher = "Elsevier Ltd",

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TY - JOUR

T1 - Study on the hot corrosion-creep failure mechanism of Ni-based single crystal superalloy considering the stress dependence

AU - Yang, Y. Q.

AU - Zhao, Y. C.

AU - Wen, Z. X.

AU - Wang, J. J.

AU - Li, M.

AU - Pei, H. Q.

AU - Yue, Z. F.

PY - 2024/4

Y1 - 2024/4

N2 - The accelerated creep failure of Ni-based single crystal superalloy by hot corrosion is confirmed by creep tests at 900 °C/550 MPa–400MPa in air and salt environments. The analysis of creep curve, microstructure and fracture type shows that there are obvious differences in hot corrosion-creep behavior under high, middle and low creep stress conditions, indicating that there is the stress dependence between the influence of hot corrosion on the creep properties of the alloy. Hot corrosion accelerates creep failure of Ni-based single crystal superalloy by decreasing the deformation resistance, reducing the effective stress area, and affecting the creep fracture mode.

AB - The accelerated creep failure of Ni-based single crystal superalloy by hot corrosion is confirmed by creep tests at 900 °C/550 MPa–400MPa in air and salt environments. The analysis of creep curve, microstructure and fracture type shows that there are obvious differences in hot corrosion-creep behavior under high, middle and low creep stress conditions, indicating that there is the stress dependence between the influence of hot corrosion on the creep properties of the alloy. Hot corrosion accelerates creep failure of Ni-based single crystal superalloy by decreasing the deformation resistance, reducing the effective stress area, and affecting the creep fracture mode.

KW - Creep

KW - Failure mechanism

KW - Hot corrosion

KW - Ni-based single crystal superalloy

KW - Stress dependence

UR - https://www.scopus.com/pages/publications/85187804227

U2 - 10.1016/j.msea.2024.146350

DO - 10.1016/j.msea.2024.146350

M3 - 文章

AN - SCOPUS:85187804227

SN - 0921-5093

VL - 897

JO - Materials Science and Engineering: A

JF - Materials Science and Engineering: A

M1 - 146350

ER -

Study on the hot corrosion-creep failure mechanism of Ni-based single crystal superalloy considering the stress dependence

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Keywords

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