Influence of arc brazing parameters on microstructure and joint properties of electro-galvanized steel

Soon Jae Lee; Ashutosh Sharma; Do Hyun Jung; Jae Pil Jung

doi:10.3390/met9091006

Influence of arc brazing parameters on microstructure and joint properties of electro-galvanized steel

Soon Jae Lee, Ashutosh Sharma, Do Hyun Jung, Jae Pil Jung

Department of Materials Science and Engineering

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

11 Scopus citations

Abstract

Arc brazing of zinc-coated steel (EG, Electro-galvanized steel) using Cu-3 wt%Si filler metal was performed. The influence of arc current and brazing speed on the bonding properties of the joint, such as bead characteristics, arc penetration, joint hardness, and tensile shear strength were evaluated. The microstructural characteristics of the joint were examined by scanning electron microscopy (SEM) and the compositional information was revealed by energy dispersive spectroscopy (EDS). The throat thickness varies inversely with the brazing speed. The EG joint shows the formation of Fe2Si phases, which result in higher microhardness than the base metal. The tensile samples were fractured in base metal, while minor bead cracks developed in the samples brazed at 80 cm/min-80 A, 60 cm/min-70 A, 70 cm/min-70 A.

Original language	English
Article number	1006
Journal	Metals
Volume	9
Issue number	9
DOIs	https://doi.org/10.3390/met9091006
State	Published - Sep 2019

Keywords

Filler metal
Gas metal arc brazing
Microhardness
Tensile shear strength
Zinc-coated steel

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10.3390/met9091006

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title = "Influence of arc brazing parameters on microstructure and joint properties of electro-galvanized steel",

abstract = "Arc brazing of zinc-coated steel (EG, Electro-galvanized steel) using Cu-3 wt%Si filler metal was performed. The influence of arc current and brazing speed on the bonding properties of the joint, such as bead characteristics, arc penetration, joint hardness, and tensile shear strength were evaluated. The microstructural characteristics of the joint were examined by scanning electron microscopy (SEM) and the compositional information was revealed by energy dispersive spectroscopy (EDS). The throat thickness varies inversely with the brazing speed. The EG joint shows the formation of Fe2Si phases, which result in higher microhardness than the base metal. The tensile samples were fractured in base metal, while minor bead cracks developed in the samples brazed at 80 cm/min-80 A, 60 cm/min-70 A, 70 cm/min-70 A.",

keywords = "Filler metal, Gas metal arc brazing, Microhardness, Tensile shear strength, Zinc-coated steel",

author = "Lee, {Soon Jae} and Ashutosh Sharma and Jung, {Do Hyun} and Jung, {Jae Pil}",

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doi = "10.3390/met9091006",

language = "English",

volume = "9",

journal = "Metals",

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T1 - Influence of arc brazing parameters on microstructure and joint properties of electro-galvanized steel

AU - Lee, Soon Jae

AU - Sharma, Ashutosh

AU - Jung, Do Hyun

AU - Jung, Jae Pil

PY - 2019/9

Y1 - 2019/9

N2 - Arc brazing of zinc-coated steel (EG, Electro-galvanized steel) using Cu-3 wt%Si filler metal was performed. The influence of arc current and brazing speed on the bonding properties of the joint, such as bead characteristics, arc penetration, joint hardness, and tensile shear strength were evaluated. The microstructural characteristics of the joint were examined by scanning electron microscopy (SEM) and the compositional information was revealed by energy dispersive spectroscopy (EDS). The throat thickness varies inversely with the brazing speed. The EG joint shows the formation of Fe2Si phases, which result in higher microhardness than the base metal. The tensile samples were fractured in base metal, while minor bead cracks developed in the samples brazed at 80 cm/min-80 A, 60 cm/min-70 A, 70 cm/min-70 A.

AB - Arc brazing of zinc-coated steel (EG, Electro-galvanized steel) using Cu-3 wt%Si filler metal was performed. The influence of arc current and brazing speed on the bonding properties of the joint, such as bead characteristics, arc penetration, joint hardness, and tensile shear strength were evaluated. The microstructural characteristics of the joint were examined by scanning electron microscopy (SEM) and the compositional information was revealed by energy dispersive spectroscopy (EDS). The throat thickness varies inversely with the brazing speed. The EG joint shows the formation of Fe2Si phases, which result in higher microhardness than the base metal. The tensile samples were fractured in base metal, while minor bead cracks developed in the samples brazed at 80 cm/min-80 A, 60 cm/min-70 A, 70 cm/min-70 A.

KW - Filler metal

KW - Gas metal arc brazing

KW - Microhardness

KW - Tensile shear strength

KW - Zinc-coated steel

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U2 - 10.3390/met9091006

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JO - Metals

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Influence of arc brazing parameters on microstructure and joint properties of electro-galvanized steel

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Keywords

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