Effect of Arc Length on Oxygen Content and Mechanical Properties of Weld Metal during Pulsed GMAW

Pulsed gas metal arc weld (GMAW) was widely used for the advantages of controllable heat input, all-position welding, and no spatter. In order to obtain an ideal welding process, the stability of the arc length was studied in many researches, but the influence of arc length on the properties of weld...
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Autor*in:	Jiachen Xu [verfasserIn] Xiaoxiao Zhou [verfasserIn] Dawei Zhu [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2022

Schlagwörter:	arc length oxygen content mechanical properties microstructure weld metal

Übergeordnetes Werk:	In: Crystals - MDPI AG, 2011, 12(2022), 2, p 176
Übergeordnetes Werk:	volume:12 ; year:2022 ; number:2, p 176

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.3390/cryst12020176

Katalog-ID:	DOAJ031656412

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520			\|a Pulsed gas metal arc weld (GMAW) was widely used for the advantages of controllable heat input, all-position welding, and no spatter. In order to obtain an ideal welding process, the stability of the arc length was studied in many researches, but the influence of arc length on the properties of weld metal was ignored. In this paper, the effect of arc length on oxygen content and mechanical properties of weld metal during pulsed GMAW was studied. Q690 high strength steel was selected as the base metal, and ER69-G solid wire, with a diameter of 1.2 mm, was used as the electrode wire. Additionally, the shielding gas and the wire feed rate were 82% Ar + 18% CO<sub<2</sub< and 4 m/min, respectively. The results showed that as the arc length raised from 2.9 mm to 9.2 mm, the oxidation reacted more completely in the droplet transfer zone, and the oxygen content of the weld metal increased significantly. The tensile strength of the weld metal reduced but the −40 °C impact energy heightened. Due to the longer arc, the proportion of acicular ferrite (AF) in the microstructure decreased, but the proportion of lath bainite (LB) and granular bainite (GB) decreased. The higher oxygen content of weld metal was useful for the formation of inclusions, which promoted the nucleation of acicular ferrite and dimples, contributing to the growth of plasticity and toughness of weld metal.
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spelling	10.3390/cryst12020176 doi (DE-627)DOAJ031656412 (DE-599)DOAJ4d27222dfb54498f8ab4982cc2f95061 DE-627 ger DE-627 rakwb eng QD901-999 Jiachen Xu verfasserin aut Effect of Arc Length on Oxygen Content and Mechanical Properties of Weld Metal during Pulsed GMAW 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Pulsed gas metal arc weld (GMAW) was widely used for the advantages of controllable heat input, all-position welding, and no spatter. In order to obtain an ideal welding process, the stability of the arc length was studied in many researches, but the influence of arc length on the properties of weld metal was ignored. In this paper, the effect of arc length on oxygen content and mechanical properties of weld metal during pulsed GMAW was studied. Q690 high strength steel was selected as the base metal, and ER69-G solid wire, with a diameter of 1.2 mm, was used as the electrode wire. Additionally, the shielding gas and the wire feed rate were 82% Ar + 18% CO<sub<2</sub< and 4 m/min, respectively. The results showed that as the arc length raised from 2.9 mm to 9.2 mm, the oxidation reacted more completely in the droplet transfer zone, and the oxygen content of the weld metal increased significantly. The tensile strength of the weld metal reduced but the −40 °C impact energy heightened. Due to the longer arc, the proportion of acicular ferrite (AF) in the microstructure decreased, but the proportion of lath bainite (LB) and granular bainite (GB) decreased. The higher oxygen content of weld metal was useful for the formation of inclusions, which promoted the nucleation of acicular ferrite and dimples, contributing to the growth of plasticity and toughness of weld metal. arc length oxygen content mechanical properties microstructure weld metal Crystallography Xiaoxiao Zhou verfasserin aut Dawei Zhu verfasserin aut In Crystals MDPI AG, 2011 12(2022), 2, p 176 (DE-627)718303067 (DE-600)2661516-2 20734352 nnns volume:12 year:2022 number:2, p 176 https://doi.org/10.3390/cryst12020176 kostenfrei https://doaj.org/article/4d27222dfb54498f8ab4982cc2f95061 kostenfrei https://www.mdpi.com/2073-4352/12/2/176 kostenfrei https://doaj.org/toc/2073-4352 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 12 2022 2, p 176
allfields_unstemmed	10.3390/cryst12020176 doi (DE-627)DOAJ031656412 (DE-599)DOAJ4d27222dfb54498f8ab4982cc2f95061 DE-627 ger DE-627 rakwb eng QD901-999 Jiachen Xu verfasserin aut Effect of Arc Length on Oxygen Content and Mechanical Properties of Weld Metal during Pulsed GMAW 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Pulsed gas metal arc weld (GMAW) was widely used for the advantages of controllable heat input, all-position welding, and no spatter. In order to obtain an ideal welding process, the stability of the arc length was studied in many researches, but the influence of arc length on the properties of weld metal was ignored. In this paper, the effect of arc length on oxygen content and mechanical properties of weld metal during pulsed GMAW was studied. Q690 high strength steel was selected as the base metal, and ER69-G solid wire, with a diameter of 1.2 mm, was used as the electrode wire. Additionally, the shielding gas and the wire feed rate were 82% Ar + 18% CO<sub<2</sub< and 4 m/min, respectively. The results showed that as the arc length raised from 2.9 mm to 9.2 mm, the oxidation reacted more completely in the droplet transfer zone, and the oxygen content of the weld metal increased significantly. The tensile strength of the weld metal reduced but the −40 °C impact energy heightened. Due to the longer arc, the proportion of acicular ferrite (AF) in the microstructure decreased, but the proportion of lath bainite (LB) and granular bainite (GB) decreased. The higher oxygen content of weld metal was useful for the formation of inclusions, which promoted the nucleation of acicular ferrite and dimples, contributing to the growth of plasticity and toughness of weld metal. arc length oxygen content mechanical properties microstructure weld metal Crystallography Xiaoxiao Zhou verfasserin aut Dawei Zhu verfasserin aut In Crystals MDPI AG, 2011 12(2022), 2, p 176 (DE-627)718303067 (DE-600)2661516-2 20734352 nnns volume:12 year:2022 number:2, p 176 https://doi.org/10.3390/cryst12020176 kostenfrei https://doaj.org/article/4d27222dfb54498f8ab4982cc2f95061 kostenfrei https://www.mdpi.com/2073-4352/12/2/176 kostenfrei https://doaj.org/toc/2073-4352 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 12 2022 2, p 176
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language	English
source	In Crystals 12(2022), 2, p 176 volume:12 year:2022 number:2, p 176
sourceStr	In Crystals 12(2022), 2, p 176 volume:12 year:2022 number:2, p 176
format_phy_str_mv	Article
institution	findex.gbv.de
topic_facet	arc length oxygen content mechanical properties microstructure weld metal Crystallography
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container_title	Crystals
authorswithroles_txt_mv	Jiachen Xu @@aut@@ Xiaoxiao Zhou @@aut@@ Dawei Zhu @@aut@@
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callnumber-first	Q - Science
author	Jiachen Xu
spellingShingle	Jiachen Xu misc QD901-999 misc arc length misc oxygen content misc mechanical properties misc microstructure misc weld metal misc Crystallography Effect of Arc Length on Oxygen Content and Mechanical Properties of Weld Metal during Pulsed GMAW
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topic_title	QD901-999 Effect of Arc Length on Oxygen Content and Mechanical Properties of Weld Metal during Pulsed GMAW arc length oxygen content mechanical properties microstructure weld metal
topic	misc QD901-999 misc arc length misc oxygen content misc mechanical properties misc microstructure misc weld metal misc Crystallography
topic_unstemmed	misc QD901-999 misc arc length misc oxygen content misc mechanical properties misc microstructure misc weld metal misc Crystallography
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title	Effect of Arc Length on Oxygen Content and Mechanical Properties of Weld Metal during Pulsed GMAW
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title_full	Effect of Arc Length on Oxygen Content and Mechanical Properties of Weld Metal during Pulsed GMAW
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title_sort	effect of arc length on oxygen content and mechanical properties of weld metal during pulsed gmaw
callnumber	QD901-999
title_auth	Effect of Arc Length on Oxygen Content and Mechanical Properties of Weld Metal during Pulsed GMAW
abstract	Pulsed gas metal arc weld (GMAW) was widely used for the advantages of controllable heat input, all-position welding, and no spatter. In order to obtain an ideal welding process, the stability of the arc length was studied in many researches, but the influence of arc length on the properties of weld metal was ignored. In this paper, the effect of arc length on oxygen content and mechanical properties of weld metal during pulsed GMAW was studied. Q690 high strength steel was selected as the base metal, and ER69-G solid wire, with a diameter of 1.2 mm, was used as the electrode wire. Additionally, the shielding gas and the wire feed rate were 82% Ar + 18% CO<sub<2</sub< and 4 m/min, respectively. The results showed that as the arc length raised from 2.9 mm to 9.2 mm, the oxidation reacted more completely in the droplet transfer zone, and the oxygen content of the weld metal increased significantly. The tensile strength of the weld metal reduced but the −40 °C impact energy heightened. Due to the longer arc, the proportion of acicular ferrite (AF) in the microstructure decreased, but the proportion of lath bainite (LB) and granular bainite (GB) decreased. The higher oxygen content of weld metal was useful for the formation of inclusions, which promoted the nucleation of acicular ferrite and dimples, contributing to the growth of plasticity and toughness of weld metal.
abstractGer	Pulsed gas metal arc weld (GMAW) was widely used for the advantages of controllable heat input, all-position welding, and no spatter. In order to obtain an ideal welding process, the stability of the arc length was studied in many researches, but the influence of arc length on the properties of weld metal was ignored. In this paper, the effect of arc length on oxygen content and mechanical properties of weld metal during pulsed GMAW was studied. Q690 high strength steel was selected as the base metal, and ER69-G solid wire, with a diameter of 1.2 mm, was used as the electrode wire. Additionally, the shielding gas and the wire feed rate were 82% Ar + 18% CO<sub<2</sub< and 4 m/min, respectively. The results showed that as the arc length raised from 2.9 mm to 9.2 mm, the oxidation reacted more completely in the droplet transfer zone, and the oxygen content of the weld metal increased significantly. The tensile strength of the weld metal reduced but the −40 °C impact energy heightened. Due to the longer arc, the proportion of acicular ferrite (AF) in the microstructure decreased, but the proportion of lath bainite (LB) and granular bainite (GB) decreased. The higher oxygen content of weld metal was useful for the formation of inclusions, which promoted the nucleation of acicular ferrite and dimples, contributing to the growth of plasticity and toughness of weld metal.
abstract_unstemmed	Pulsed gas metal arc weld (GMAW) was widely used for the advantages of controllable heat input, all-position welding, and no spatter. In order to obtain an ideal welding process, the stability of the arc length was studied in many researches, but the influence of arc length on the properties of weld metal was ignored. In this paper, the effect of arc length on oxygen content and mechanical properties of weld metal during pulsed GMAW was studied. Q690 high strength steel was selected as the base metal, and ER69-G solid wire, with a diameter of 1.2 mm, was used as the electrode wire. Additionally, the shielding gas and the wire feed rate were 82% Ar + 18% CO<sub<2</sub< and 4 m/min, respectively. The results showed that as the arc length raised from 2.9 mm to 9.2 mm, the oxidation reacted more completely in the droplet transfer zone, and the oxygen content of the weld metal increased significantly. The tensile strength of the weld metal reduced but the −40 °C impact energy heightened. Due to the longer arc, the proportion of acicular ferrite (AF) in the microstructure decreased, but the proportion of lath bainite (LB) and granular bainite (GB) decreased. The higher oxygen content of weld metal was useful for the formation of inclusions, which promoted the nucleation of acicular ferrite and dimples, contributing to the growth of plasticity and toughness of weld metal.
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container_issue	2, p 176
title_short	Effect of Arc Length on Oxygen Content and Mechanical Properties of Weld Metal during Pulsed GMAW
url	https://doi.org/10.3390/cryst12020176 https://doaj.org/article/4d27222dfb54498f8ab4982cc2f95061 https://www.mdpi.com/2073-4352/12/2/176 https://doaj.org/toc/2073-4352
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up_date	2024-07-03T21:46:46.231Z
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