Weldability of A7075-T651 and AZ31B Dissimilar Alloys by MIG Welding Method Based on Welding Appearances

It is not recommended to weld aluminium and magnesium dissimilar alloys using fusion welding method because of the formation of AlmMgn type intermetallic brittle compounds like Mg2Al3, Mg17Al12 etc. in the welding joint. These brittle compounds deteriorate the mechanical properties of the joint. But...

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Main Authors:	M., Ishak, M. Rafiqul, Islam
Format:	Article
Language:	English
Published:	IOP Publishing 2014
Subjects:	T Technology (General) TJ Mechanical engineering and machinery
Online Access:	http://umpir.ump.edu.my/id/eprint/5592/ http://umpir.ump.edu.my/id/eprint/5592/ http://umpir.ump.edu.my/id/eprint/5592/ http://umpir.ump.edu.my/id/eprint/5592/1/Az31B_and_A7075_based_on_welding_appearance_IOP.pdf

id	ump-5592
recordtype	eprints
spelling	ump-55922018-11-29T06:58:39Z http://umpir.ump.edu.my/id/eprint/5592/ Weldability of A7075-T651 and AZ31B Dissimilar Alloys by MIG Welding Method Based on Welding Appearances M., Ishak M. Rafiqul, Islam T Technology (General) TJ Mechanical engineering and machinery It is not recommended to weld aluminium and magnesium dissimilar alloys using fusion welding method because of the formation of AlmMgn type intermetallic brittle compounds like Mg2Al3, Mg17Al12 etc. in the welding joint. These brittle compounds deteriorate the mechanical properties of the joint. But so far, insufficient researches have been attempted to stop the formation of AlmMgn type intermetallic brittle compounds in fusion welding method. The aim of this research work was to investigate on the weldability between A7075-T651 and AZ31B dissimilar alloys based on welding appearances and study the formation of intermetallic brittle compounds at the joint. In this research, A7075-T651 and AZ31B al¬loys were welded using ER5356 filler wire in MIG welding method in butt configuration. 100% argon was used as shielding gas. The results showed that, most of the welding appearances were moderate. The macroscopic investigation at all welding cross section showed that a lot of AlmMgn intermetallic brittle compounds were formed at the interface between weld seam and AZ31B parent metal side which caused macro cracks. A good number of macro pores were also observed at AZ31B parent metal side. These cracks and pores could easily cause the failure of the joint at very low stress IOP Publishing 2014 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/5592/1/Az31B_and_A7075_based_on_welding_appearance_IOP.pdf M., Ishak and M. Rafiqul, Islam (2014) Weldability of A7075-T651 and AZ31B Dissimilar Alloys by MIG Welding Method Based on Welding Appearances. Journal of Physics: Conference series, 495. pp. 1-8. ISSN 1742-6588 (print); 1742-6596 (online) http://dx.doi.org/10.1088/1742-6596/495/1/012022 DOI: 10.1088/1742-6596/495/1/012022
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	T Technology (General) TJ Mechanical engineering and machinery
spellingShingle	T Technology (General) TJ Mechanical engineering and machinery M., Ishak M. Rafiqul, Islam Weldability of A7075-T651 and AZ31B Dissimilar Alloys by MIG Welding Method Based on Welding Appearances
description	It is not recommended to weld aluminium and magnesium dissimilar alloys using fusion welding method because of the formation of AlmMgn type intermetallic brittle compounds like Mg2Al3, Mg17Al12 etc. in the welding joint. These brittle compounds deteriorate the mechanical properties of the joint. But so far, insufficient researches have been attempted to stop the formation of AlmMgn type intermetallic brittle compounds in fusion welding method. The aim of this research work was to investigate on the weldability between A7075-T651 and AZ31B dissimilar alloys based on welding appearances and study the formation of intermetallic brittle compounds at the joint. In this research, A7075-T651 and AZ31B al¬loys were welded using ER5356 filler wire in MIG welding method in butt configuration. 100% argon was used as shielding gas. The results showed that, most of the welding appearances were moderate. The macroscopic investigation at all welding cross section showed that a lot of AlmMgn intermetallic brittle compounds were formed at the interface between weld seam and AZ31B parent metal side which caused macro cracks. A good number of macro pores were also observed at AZ31B parent metal side. These cracks and pores could easily cause the failure of the joint at very low stress
format	Article
author	M., Ishak M. Rafiqul, Islam
author_facet	M., Ishak M. Rafiqul, Islam
author_sort	M., Ishak
title	Weldability of A7075-T651 and AZ31B Dissimilar Alloys by MIG Welding Method Based on Welding Appearances
title_short	Weldability of A7075-T651 and AZ31B Dissimilar Alloys by MIG Welding Method Based on Welding Appearances
title_full	Weldability of A7075-T651 and AZ31B Dissimilar Alloys by MIG Welding Method Based on Welding Appearances
title_fullStr	Weldability of A7075-T651 and AZ31B Dissimilar Alloys by MIG Welding Method Based on Welding Appearances
title_full_unstemmed	Weldability of A7075-T651 and AZ31B Dissimilar Alloys by MIG Welding Method Based on Welding Appearances
title_sort	weldability of a7075-t651 and az31b dissimilar alloys by mig welding method based on welding appearances
publisher	IOP Publishing
publishDate	2014
url	http://umpir.ump.edu.my/id/eprint/5592/ http://umpir.ump.edu.my/id/eprint/5592/ http://umpir.ump.edu.my/id/eprint/5592/ http://umpir.ump.edu.my/id/eprint/5592/1/Az31B_and_A7075_based_on_welding_appearance_IOP.pdf
first_indexed	2023-09-18T22:00:57Z
last_indexed	2023-09-18T22:00:57Z
_version_	1777414394106347520

Weldability of A7075-T651 and AZ31B Dissimilar Alloys by MIG Welding Method Based on Welding Appearances

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