The relation between microstructure and corrosion behavior of GTA welded AZ31B magnesium sheet

G. Ben-Hamu; D. Eliezer; C. E. Cross; Th Böllinghaus

doi:10.1016/j.msea.2006.12.122

The relation between microstructure and corrosion behavior of GTA welded AZ31B magnesium sheet

G. Ben-Hamu, D. Eliezer, C. E. Cross, Th Böllinghaus

Department of Materials Engineering

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

54 Scopus citations

Abstract

Welding of AZ31B magnesium alloy was carried out using gas-tungsten arc (GTA) welding. The microstructure and the corrosion behavior of welded magnesium AZ31B alloy were investigated. ac and dc polarization tests were carried out on the welded Mg sheet. The microstructure was examined using optical and electron microscopy (TEM and SEM), X-ray analysis and EDS. Scanning Kelvin probe force microscopy (SKPFM) was used in order to measure the Volta potential of different phases relative to the matrix. The results showed that the GTA process effected both the microstructure and the corrosion behavior. These results can be explained by the effects of the process on microstructure of AZ31B Mg alloy sheet such as grain size and precipitates caused by the change in precipitation and recrystallization behavior.

Original language	English
Pages (from-to)	210-218
Number of pages	9
Journal	Materials Science and Engineering: A
Volume	452-453
DOIs	https://doi.org/10.1016/j.msea.2006.12.122
State	Published - 15 Apr 2007

Keywords

AZ31B
Corrosion behavior
GTA weld
Intermetallics
Microstructure
SKPFM

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.1016/j.msea.2006.12.122

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title = "The relation between microstructure and corrosion behavior of GTA welded AZ31B magnesium sheet",

abstract = "Welding of AZ31B magnesium alloy was carried out using gas-tungsten arc (GTA) welding. The microstructure and the corrosion behavior of welded magnesium AZ31B alloy were investigated. ac and dc polarization tests were carried out on the welded Mg sheet. The microstructure was examined using optical and electron microscopy (TEM and SEM), X-ray analysis and EDS. Scanning Kelvin probe force microscopy (SKPFM) was used in order to measure the Volta potential of different phases relative to the matrix. The results showed that the GTA process effected both the microstructure and the corrosion behavior. These results can be explained by the effects of the process on microstructure of AZ31B Mg alloy sheet such as grain size and precipitates caused by the change in precipitation and recrystallization behavior.",

keywords = "AZ31B, Corrosion behavior, GTA weld, Intermetallics, Microstructure, SKPFM",

author = "G. Ben-Hamu and D. Eliezer and Cross, {C. E.} and Th B{\"o}llinghaus",

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doi = "10.1016/j.msea.2006.12.122",

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journal = "Materials Science and Engineering: A",

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T1 - The relation between microstructure and corrosion behavior of GTA welded AZ31B magnesium sheet

AU - Ben-Hamu, G.

AU - Eliezer, D.

AU - Cross, C. E.

AU - Böllinghaus, Th

PY - 2007/4/15

Y1 - 2007/4/15

N2 - Welding of AZ31B magnesium alloy was carried out using gas-tungsten arc (GTA) welding. The microstructure and the corrosion behavior of welded magnesium AZ31B alloy were investigated. ac and dc polarization tests were carried out on the welded Mg sheet. The microstructure was examined using optical and electron microscopy (TEM and SEM), X-ray analysis and EDS. Scanning Kelvin probe force microscopy (SKPFM) was used in order to measure the Volta potential of different phases relative to the matrix. The results showed that the GTA process effected both the microstructure and the corrosion behavior. These results can be explained by the effects of the process on microstructure of AZ31B Mg alloy sheet such as grain size and precipitates caused by the change in precipitation and recrystallization behavior.

AB - Welding of AZ31B magnesium alloy was carried out using gas-tungsten arc (GTA) welding. The microstructure and the corrosion behavior of welded magnesium AZ31B alloy were investigated. ac and dc polarization tests were carried out on the welded Mg sheet. The microstructure was examined using optical and electron microscopy (TEM and SEM), X-ray analysis and EDS. Scanning Kelvin probe force microscopy (SKPFM) was used in order to measure the Volta potential of different phases relative to the matrix. The results showed that the GTA process effected both the microstructure and the corrosion behavior. These results can be explained by the effects of the process on microstructure of AZ31B Mg alloy sheet such as grain size and precipitates caused by the change in precipitation and recrystallization behavior.

KW - AZ31B

KW - Corrosion behavior

KW - GTA weld

KW - Intermetallics

KW - Microstructure

KW - SKPFM

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U2 - 10.1016/j.msea.2006.12.122

DO - 10.1016/j.msea.2006.12.122

M3 - Article

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SN - 0921-5093

VL - 452-453

SP - 210

EP - 218

JO - Materials Science and Engineering: A

JF - Materials Science and Engineering: A

ER -

The relation between microstructure and corrosion behavior of GTA welded AZ31B magnesium sheet

Abstract

Keywords

ASJC Scopus subject areas

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