Effects of tensile and compressive deformation on corrosion behaviour of a Mg-Zn alloy

Yang Zheng; Yan Li; Jihua Chen; Zhengyang Zou

doi:10.1016/j.corsci.2014.10.043

Effects of tensile and compressive deformation on corrosion behaviour of a Mg-Zn alloy

Yang Zheng
, Yan Li^*
, Jihua Chen
, Zhengyang Zou

^*Corresponding author for this work

School of Materials Science and Engineering

Beihang University
Hunan University

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

108 Scopus citations

Abstract

The corrosion behaviour of a Mg-2.65. wt.%Zn alloy after tensile and compressive deformation has been investigated using dynamic polarization and immersion tests. The microstructure has been characterized using X-ray diffraction spectroscopy and transmission electron microscopy. Tensile and compressive deformation introduces high density dislocations and deformation twins to the alloy and accelerates the corrosion rate. This is ascribed to the enhanced stress corrosion associated with dislocations and deformation twins. In particular, we find that tensile deformation triggers a different intergranular corrosion mechanism in contrast to compressive deformation. The relationship between the corrosion behaviour and microstructure has been discussed.

Original language	English
Pages (from-to)	445-450
Number of pages	6
Journal	Corrosion Science
Volume	90
DOIs	https://doi.org/10.1016/j.corsci.2014.10.043
State	Published - 1 Jan 2015

Keywords

A. Magnesium
B. Polarization
B. TEM
B. Weight loss
C. Effects of strain

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10.1016/j.corsci.2014.10.043

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title = "Effects of tensile and compressive deformation on corrosion behaviour of a Mg-Zn alloy",

abstract = "The corrosion behaviour of a Mg-2.65. wt.\%Zn alloy after tensile and compressive deformation has been investigated using dynamic polarization and immersion tests. The microstructure has been characterized using X-ray diffraction spectroscopy and transmission electron microscopy. Tensile and compressive deformation introduces high density dislocations and deformation twins to the alloy and accelerates the corrosion rate. This is ascribed to the enhanced stress corrosion associated with dislocations and deformation twins. In particular, we find that tensile deformation triggers a different intergranular corrosion mechanism in contrast to compressive deformation. The relationship between the corrosion behaviour and microstructure has been discussed.",

keywords = "A. Magnesium, B. Polarization, B. TEM, B. Weight loss, C. Effects of strain",

author = "Yang Zheng and Yan Li and Jihua Chen and Zhengyang Zou",

note = "Publisher Copyright: {\textcopyright} 2014 Elsevier Ltd.",

year = "2015",

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doi = "10.1016/j.corsci.2014.10.043",

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T1 - Effects of tensile and compressive deformation on corrosion behaviour of a Mg-Zn alloy

AU - Zheng, Yang

AU - Li, Yan

AU - Chen, Jihua

AU - Zou, Zhengyang

PY - 2015/1/1

Y1 - 2015/1/1

N2 - The corrosion behaviour of a Mg-2.65. wt.%Zn alloy after tensile and compressive deformation has been investigated using dynamic polarization and immersion tests. The microstructure has been characterized using X-ray diffraction spectroscopy and transmission electron microscopy. Tensile and compressive deformation introduces high density dislocations and deformation twins to the alloy and accelerates the corrosion rate. This is ascribed to the enhanced stress corrosion associated with dislocations and deformation twins. In particular, we find that tensile deformation triggers a different intergranular corrosion mechanism in contrast to compressive deformation. The relationship between the corrosion behaviour and microstructure has been discussed.

AB - The corrosion behaviour of a Mg-2.65. wt.%Zn alloy after tensile and compressive deformation has been investigated using dynamic polarization and immersion tests. The microstructure has been characterized using X-ray diffraction spectroscopy and transmission electron microscopy. Tensile and compressive deformation introduces high density dislocations and deformation twins to the alloy and accelerates the corrosion rate. This is ascribed to the enhanced stress corrosion associated with dislocations and deformation twins. In particular, we find that tensile deformation triggers a different intergranular corrosion mechanism in contrast to compressive deformation. The relationship between the corrosion behaviour and microstructure has been discussed.

KW - A. Magnesium

KW - B. Polarization

KW - B. TEM

KW - B. Weight loss

KW - C. Effects of strain

UR - https://www.scopus.com/pages/publications/84914179015

U2 - 10.1016/j.corsci.2014.10.043

DO - 10.1016/j.corsci.2014.10.043

M3 - 文章

AN - SCOPUS:84914179015

SN - 0010-938X

VL - 90

SP - 445

EP - 450

JO - Corrosion Science

JF - Corrosion Science

ER -

Effects of tensile and compressive deformation on corrosion behaviour of a Mg-Zn alloy

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Keywords

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