Study on abnormal hot corrosion behavior of nickel-based single-crystal superalloy at 900 °C after drilling

Zehao Chen; Mengmeng Wu; Yanling Pei; Shusuo Li; Shengkai Gong

doi:10.1038/s41529-021-00167-4

Study on abnormal hot corrosion behavior of nickel-based single-crystal superalloy at 900 °C after drilling

Zehao Chen
, Mengmeng Wu
, Yanling Pei
, Shusuo Li^*
, Shengkai Gong

^*Corresponding author for this work

Beihang University

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

13 Scopus citations

Abstract

The hot corrosion behavior of nickel-based single-crystal superalloy after drilling is investigated at 900 °C. The characteristics of hot corrosion after drilling which are different from normal hot corrosion are reflected in the formation of a more stable oxide layer and less severe spallation. The change of microstructure around the hole is the main reason for the formation of a stable oxide layer during hot corrosion by changing the diffusion process of alloying elements. Subsequently, the formation of a stable oxide layer can reduce the effect of spalling by optimizing surface stress.

Original language	English
Article number	21
Journal	npj Materials Degradation
Volume	5
Issue number	1
DOIs	https://doi.org/10.1038/s41529-021-00167-4
State	Published - Dec 2021

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title = "Study on abnormal hot corrosion behavior of nickel-based single-crystal superalloy at 900 °C after drilling",

abstract = "The hot corrosion behavior of nickel-based single-crystal superalloy after drilling is investigated at 900 °C. The characteristics of hot corrosion after drilling which are different from normal hot corrosion are reflected in the formation of a more stable oxide layer and less severe spallation. The change of microstructure around the hole is the main reason for the formation of a stable oxide layer during hot corrosion by changing the diffusion process of alloying elements. Subsequently, the formation of a stable oxide layer can reduce the effect of spalling by optimizing surface stress.",

author = "Zehao Chen and Mengmeng Wu and Yanling Pei and Shusuo Li and Shengkai Gong",

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AU - Chen, Zehao

AU - Wu, Mengmeng

AU - Pei, Yanling

AU - Li, Shusuo

AU - Gong, Shengkai

PY - 2021/12

Y1 - 2021/12

N2 - The hot corrosion behavior of nickel-based single-crystal superalloy after drilling is investigated at 900 °C. The characteristics of hot corrosion after drilling which are different from normal hot corrosion are reflected in the formation of a more stable oxide layer and less severe spallation. The change of microstructure around the hole is the main reason for the formation of a stable oxide layer during hot corrosion by changing the diffusion process of alloying elements. Subsequently, the formation of a stable oxide layer can reduce the effect of spalling by optimizing surface stress.

AB - The hot corrosion behavior of nickel-based single-crystal superalloy after drilling is investigated at 900 °C. The characteristics of hot corrosion after drilling which are different from normal hot corrosion are reflected in the formation of a more stable oxide layer and less severe spallation. The change of microstructure around the hole is the main reason for the formation of a stable oxide layer during hot corrosion by changing the diffusion process of alloying elements. Subsequently, the formation of a stable oxide layer can reduce the effect of spalling by optimizing surface stress.

UR - https://www.scopus.com/pages/publications/85105871283

U2 - 10.1038/s41529-021-00167-4

DO - 10.1038/s41529-021-00167-4

M3 - 文章

AN - SCOPUS:85105871283

SN - 2397-2106

VL - 5

JO - npj Materials Degradation

JF - npj Materials Degradation

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M1 - 21

ER -

Study on abnormal hot corrosion behavior of nickel-based single-crystal superalloy at 900 °C after drilling

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