Effects of Nano-Grains and Deformation Nano-Twins on Electrochemical Corrosion Behavior of DZ125 Nickel-Based Superalloy

Jun Tang; Hongyun Luo; Jingjing Guo; Jinlong Lv; Zheng Zhang; Yue Ma

doi:10.1002/adem.201800279

Effects of Nano-Grains and Deformation Nano-Twins on Electrochemical Corrosion Behavior of DZ125 Nickel-Based Superalloy

Jun Tang
, Hongyun Luo^*
, Jingjing Guo
, Jinlong Lv
, Zheng Zhang
, Yue Ma

^*Corresponding author for this work

School of Materials Science and Engineering

Beihang University
Tohoku University

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

8 Scopus citations

Abstract

Nano-grains on the surface region of the DZ125 directionally solidified nickel based superalloy is obtained through burnishing processing at both room and low temperature. Compared to the low temperature burnished (LTB) specimen, the {111}/[112] type nano-twins are generated on the room temperature burnished specimen (specimen RTB). The results demonstrate that the nano-grains could improve the corrosion resistance and promote the formation of compact corrosion product films on the burnished DZ125 alloy surface in a 3.5 wt% NaCl solution. The combined effects of local deformation nano-twins and lower percentage of Cr₂O₃ in corrosion product film lead to the fact that the specimen RTB exhibits a relatively lower corrosion resistance compared to the specimen LTB.

Original language	English
Article number	1800279
Journal	Advanced Engineering Materials
Volume	20
Issue number	12
DOIs	https://doi.org/10.1002/adem.201800279
State	Published - Dec 2018

Keywords

Ni-based superalloy
X-ray photoelectron spectroscopy
electrochemical measurements
nano-twins
surface nanocrystallization

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10.1002/adem.201800279

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title = "Effects of Nano-Grains and Deformation Nano-Twins on Electrochemical Corrosion Behavior of DZ125 Nickel-Based Superalloy",

abstract = "Nano-grains on the surface region of the DZ125 directionally solidified nickel based superalloy is obtained through burnishing processing at both room and low temperature. Compared to the low temperature burnished (LTB) specimen, the \{111\}/[112] type nano-twins are generated on the room temperature burnished specimen (specimen RTB). The results demonstrate that the nano-grains could improve the corrosion resistance and promote the formation of compact corrosion product films on the burnished DZ125 alloy surface in a 3.5 wt\% NaCl solution. The combined effects of local deformation nano-twins and lower percentage of Cr2O3 in corrosion product film lead to the fact that the specimen RTB exhibits a relatively lower corrosion resistance compared to the specimen LTB.",

keywords = "Ni-based superalloy, X-ray photoelectron spectroscopy, electrochemical measurements, nano-twins, surface nanocrystallization",

author = "Jun Tang and Hongyun Luo and Jingjing Guo and Jinlong Lv and Zheng Zhang and Yue Ma",

note = "Publisher Copyright: {\textcopyright} 2018 WILEY-VCH Verlag GmbH \& Co. KGaA, Weinheim",

year = "2018",

month = dec,

doi = "10.1002/adem.201800279",

language = "英语",

volume = "20",

journal = "Advanced Engineering Materials",

issn = "1438-1656",

publisher = "Wiley-VCH Verlag",

number = "12",

}

TY - JOUR

T1 - Effects of Nano-Grains and Deformation Nano-Twins on Electrochemical Corrosion Behavior of DZ125 Nickel-Based Superalloy

AU - Tang, Jun

AU - Luo, Hongyun

AU - Guo, Jingjing

AU - Lv, Jinlong

AU - Zhang, Zheng

AU - Ma, Yue

PY - 2018/12

Y1 - 2018/12

N2 - Nano-grains on the surface region of the DZ125 directionally solidified nickel based superalloy is obtained through burnishing processing at both room and low temperature. Compared to the low temperature burnished (LTB) specimen, the {111}/[112] type nano-twins are generated on the room temperature burnished specimen (specimen RTB). The results demonstrate that the nano-grains could improve the corrosion resistance and promote the formation of compact corrosion product films on the burnished DZ125 alloy surface in a 3.5 wt% NaCl solution. The combined effects of local deformation nano-twins and lower percentage of Cr2O3 in corrosion product film lead to the fact that the specimen RTB exhibits a relatively lower corrosion resistance compared to the specimen LTB.

AB - Nano-grains on the surface region of the DZ125 directionally solidified nickel based superalloy is obtained through burnishing processing at both room and low temperature. Compared to the low temperature burnished (LTB) specimen, the {111}/[112] type nano-twins are generated on the room temperature burnished specimen (specimen RTB). The results demonstrate that the nano-grains could improve the corrosion resistance and promote the formation of compact corrosion product films on the burnished DZ125 alloy surface in a 3.5 wt% NaCl solution. The combined effects of local deformation nano-twins and lower percentage of Cr2O3 in corrosion product film lead to the fact that the specimen RTB exhibits a relatively lower corrosion resistance compared to the specimen LTB.

KW - Ni-based superalloy

KW - X-ray photoelectron spectroscopy

KW - electrochemical measurements

KW - nano-twins

KW - surface nanocrystallization

UR - https://www.scopus.com/pages/publications/85053815356

U2 - 10.1002/adem.201800279

DO - 10.1002/adem.201800279

M3 - 文章

AN - SCOPUS:85053815356

SN - 1438-1656

VL - 20

JO - Advanced Engineering Materials

JF - Advanced Engineering Materials

IS - 12

M1 - 1800279

ER -

Effects of Nano-Grains and Deformation Nano-Twins on Electrochemical Corrosion Behavior of DZ125 Nickel-Based Superalloy

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Keywords

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