Effect of Zr Addition on the corrosion MG behavior of extruded alloys in NaCl solution

Seok Hoan Jeong; Byung Jin Kim; Hyun Kyu Lim; Won Tae Kim; Do Hyang Kim; Soon Hyeok Jeon

doi:10.2320/matertrans.M2017329

Effect of Zr Addition on the corrosion MG behavior of extruded alloys in NaCl solution

Seok Hoan Jeong, Byung Jin Kim, Hyun Kyu Lim, Won Tae Kim, Do Hyang Kim, Soon Hyeok Jeon

Department of Materials Science and Engineering

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

1 Citation (Scopus)

Abstract

The effect of Zr addition on the corrosion behavior of an extruded Mg-10Gd-1Zn alloy (GZ101) in 3.5 mass% NaCl solution was investigated by electrochemical and immersion tests in 3.5% NaCl solution. The addition of 1 mass% Zr to GZ101 (to afford GZ101-1Zr) decreased the fraction of 14H (number of stacking layers and H-Hexahedral structure) and lamellar long period stacking ordered (LPSO) phases across the α-Mg matrix and increased the fraction of the X-phase (Mg₁₂GdZn) formed at grain boundaries. Extruded GZ101-1Zr exhibited a significantly smaller corrosion rate than extruded GZ101 (0.13 vs. 2.11 mm·year⁻¹) due to containing less 14H/lamellar LPSO phases (detri- ¯ mental to corrosion resistance) and featuring a noble {1010} prismatic texture in the extrusion direction.

Original language	English
Pages (from-to)	499-502
Number of pages	4
Journal	Materials Transactions
Volume	59
Issue number	3
DOIs	https://doi.org/10.2320/matertrans.M2017329
Publication status	Published - 2018

Bibliographical note

Funding Information:
This study was financially supported by the Important Defense Materials Technology Development project funded by the Korea Ministry of Industrial, Trade and Energy (Project No. NRF 10043821) Korea Government.

Publisher Copyright:
© 2018 The Japan Institute of Metals and Materials.

All Science Journal Classification (ASJC) codes

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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title = "Effect of Zr Addition on the corrosion MG behavior of extruded alloys in NaCl solution",

abstract = "The effect of Zr addition on the corrosion behavior of an extruded Mg-10Gd-1Zn alloy (GZ101) in 3.5 mass% NaCl solution was investigated by electrochemical and immersion tests in 3.5% NaCl solution. The addition of 1 mass% Zr to GZ101 (to afford GZ101-1Zr) decreased the fraction of 14H (number of stacking layers and H-Hexahedral structure) and lamellar long period stacking ordered (LPSO) phases across the α-Mg matrix and increased the fraction of the X-phase (Mg12GdZn) formed at grain boundaries. Extruded GZ101-1Zr exhibited a significantly smaller corrosion rate than extruded GZ101 (0.13 vs. 2.11 mm·year−1) due to containing less 14H/lamellar LPSO phases (detri- ¯ mental to corrosion resistance) and featuring a noble {1010} prismatic texture in the extrusion direction.",

author = "Jeong, {Seok Hoan} and Kim, {Byung Jin} and Lim, {Hyun Kyu} and Kim, {Won Tae} and Kim, {Do Hyang} and Jeon, {Soon Hyeok}",

note = "Funding Information: This study was financially supported by the Important Defense Materials Technology Development project funded by the Korea Ministry of Industrial, Trade and Energy (Project No. NRF 10043821) Korea Government. Publisher Copyright: {\textcopyright} 2018 The Japan Institute of Metals and Materials.",

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doi = "10.2320/matertrans.M2017329",

language = "English",

volume = "59",

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AU - Jeong, Seok Hoan

AU - Kim, Byung Jin

AU - Lim, Hyun Kyu

AU - Kim, Won Tae

AU - Kim, Do Hyang

AU - Jeon, Soon Hyeok

N1 - Funding Information: This study was financially supported by the Important Defense Materials Technology Development project funded by the Korea Ministry of Industrial, Trade and Energy (Project No. NRF 10043821) Korea Government. Publisher Copyright: © 2018 The Japan Institute of Metals and Materials.

PY - 2018

Y1 - 2018

N2 - The effect of Zr addition on the corrosion behavior of an extruded Mg-10Gd-1Zn alloy (GZ101) in 3.5 mass% NaCl solution was investigated by electrochemical and immersion tests in 3.5% NaCl solution. The addition of 1 mass% Zr to GZ101 (to afford GZ101-1Zr) decreased the fraction of 14H (number of stacking layers and H-Hexahedral structure) and lamellar long period stacking ordered (LPSO) phases across the α-Mg matrix and increased the fraction of the X-phase (Mg12GdZn) formed at grain boundaries. Extruded GZ101-1Zr exhibited a significantly smaller corrosion rate than extruded GZ101 (0.13 vs. 2.11 mm·year−1) due to containing less 14H/lamellar LPSO phases (detri- ¯ mental to corrosion resistance) and featuring a noble {1010} prismatic texture in the extrusion direction.

AB - The effect of Zr addition on the corrosion behavior of an extruded Mg-10Gd-1Zn alloy (GZ101) in 3.5 mass% NaCl solution was investigated by electrochemical and immersion tests in 3.5% NaCl solution. The addition of 1 mass% Zr to GZ101 (to afford GZ101-1Zr) decreased the fraction of 14H (number of stacking layers and H-Hexahedral structure) and lamellar long period stacking ordered (LPSO) phases across the α-Mg matrix and increased the fraction of the X-phase (Mg12GdZn) formed at grain boundaries. Extruded GZ101-1Zr exhibited a significantly smaller corrosion rate than extruded GZ101 (0.13 vs. 2.11 mm·year−1) due to containing less 14H/lamellar LPSO phases (detri- ¯ mental to corrosion resistance) and featuring a noble {1010} prismatic texture in the extrusion direction.

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Effect of Zr Addition on the corrosion MG behavior of extruded alloys in NaCl solution

Abstract

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