Improved corrosion resistance of extruded Mg-8Sn-1Zn-1Al alloy by microalloying with Mn

Heon Young Ha; Hyeon Ju Kim; Soo Min Baek; Beomcheol Kim; So Dam Sohn; Hyung Joon Shin; Hu Young Jeong; Sung Hyuk Park; Chang Dong Yim; Bong Sun You; Jung Gu Lee; Sung Soo Park

doi:10.1016/j.scriptamat.2015.07.013

Improved corrosion resistance of extruded Mg-8Sn-1Zn-1Al alloy by microalloying with Mn

Heon Young Ha
, Hyeon Ju Kim
, Soo Min Baek
, Beomcheol Kim
, So Dam Sohn
, Hyung Joon Shin
, Hu Young Jeong
, Sung Hyuk Park
, Chang Dong Yim
, Bong Sun You
, Jung Gu Lee
, Sung Soo Park

Korea Institute of Materials Science
Ulsan National Institute of Science and Technology
University of Ulsan

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

53 Scopus citations

Abstract

We report that microalloying with Mn substantially enhances the corrosion resistance of extruded Mg-8Sn-1Zn-1Al alloy. The corrosion rates, measured by immersion tests in 0.6 M NaCl solution at 25 °C, were 4.37 and 246.72 mm y^-1 for the quaternary alloys with and without 0.1 wt% Mn, respectively. The enhanced corrosion resistance due to Mn microalloying is attributed to reduced H₂ evolution rate, attained by a change in the type of Al-containing intermetallic particles, which led to a reduction of the particles' electrochemical nobility.

Original language	English
Article number	10725
Pages (from-to)	38-43
Number of pages	6
Journal	Scripta Materialia
Volume	109
DOIs	https://doi.org/10.1016/j.scriptamat.2015.07.013
State	Published - 1 Dec 2015

Keywords

Corrosion
Extrusion
Intermetallic particle
Magnesium alloy

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10.1016/j.scriptamat.2015.07.013

Cite this

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title = "Improved corrosion resistance of extruded Mg-8Sn-1Zn-1Al alloy by microalloying with Mn",

abstract = "We report that microalloying with Mn substantially enhances the corrosion resistance of extruded Mg-8Sn-1Zn-1Al alloy. The corrosion rates, measured by immersion tests in 0.6 M NaCl solution at 25 °C, were 4.37 and 246.72 mm y-1 for the quaternary alloys with and without 0.1 wt\% Mn, respectively. The enhanced corrosion resistance due to Mn microalloying is attributed to reduced H2 evolution rate, attained by a change in the type of Al-containing intermetallic particles, which led to a reduction of the particles' electrochemical nobility.",

keywords = "Corrosion, Extrusion, Intermetallic particle, Magnesium alloy",

author = "Ha, \{Heon Young\} and Kim, \{Hyeon Ju\} and Baek, \{Soo Min\} and Beomcheol Kim and Sohn, \{So Dam\} and Shin, \{Hyung Joon\} and Jeong, \{Hu Young\} and Park, \{Sung Hyuk\} and Yim, \{Chang Dong\} and You, \{Bong Sun\} and Lee, \{Jung Gu\} and Park, \{Sung Soo\}",

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doi = "10.1016/j.scriptamat.2015.07.013",

language = "English",

volume = "109",

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TY - JOUR

T1 - Improved corrosion resistance of extruded Mg-8Sn-1Zn-1Al alloy by microalloying with Mn

AU - Ha, Heon Young

AU - Kim, Hyeon Ju

AU - Baek, Soo Min

AU - Kim, Beomcheol

AU - Sohn, So Dam

AU - Shin, Hyung Joon

AU - Jeong, Hu Young

AU - Park, Sung Hyuk

AU - Yim, Chang Dong

AU - You, Bong Sun

AU - Lee, Jung Gu

AU - Park, Sung Soo

PY - 2015/12/1

Y1 - 2015/12/1

N2 - We report that microalloying with Mn substantially enhances the corrosion resistance of extruded Mg-8Sn-1Zn-1Al alloy. The corrosion rates, measured by immersion tests in 0.6 M NaCl solution at 25 °C, were 4.37 and 246.72 mm y-1 for the quaternary alloys with and without 0.1 wt% Mn, respectively. The enhanced corrosion resistance due to Mn microalloying is attributed to reduced H2 evolution rate, attained by a change in the type of Al-containing intermetallic particles, which led to a reduction of the particles' electrochemical nobility.

AB - We report that microalloying with Mn substantially enhances the corrosion resistance of extruded Mg-8Sn-1Zn-1Al alloy. The corrosion rates, measured by immersion tests in 0.6 M NaCl solution at 25 °C, were 4.37 and 246.72 mm y-1 for the quaternary alloys with and without 0.1 wt% Mn, respectively. The enhanced corrosion resistance due to Mn microalloying is attributed to reduced H2 evolution rate, attained by a change in the type of Al-containing intermetallic particles, which led to a reduction of the particles' electrochemical nobility.

KW - Corrosion

KW - Extrusion

KW - Intermetallic particle

KW - Magnesium alloy

UR - https://www.scopus.com/pages/publications/84940439421

U2 - 10.1016/j.scriptamat.2015.07.013

DO - 10.1016/j.scriptamat.2015.07.013

M3 - Article

AN - SCOPUS:84940439421

SN - 1359-6462

VL - 109

SP - 38

EP - 43

JO - Scripta Materialia

JF - Scripta Materialia

M1 - 10725

ER -

Improved corrosion resistance of extruded Mg-8Sn-1Zn-1Al alloy by microalloying with Mn

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Keywords

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