Study on Welding Characteristics and Parameters of Gas Metal Arc Welding for A516 Grade 70 Steel with ER70S-6 and ER308LSi Filler Materials

Welding is a crucial process in joining metals, especially in the fabrication industry. Thisresearch aimed to investigate the effects of using two different filler materials, ER70S-6 and ER308LSi, with nine combinations of wire feeder speed (WFS) and shielding gas flow rate (GFR), on weld joints. Th...

Full description

Bibliographic Details
Published in:Materials
Main Author: Chong K.; Mhd Noor E.E.; Amir A.; Baig M.F.
Format: Article
Language:English
Published: Multidisciplinary Digital Publishing Institute (MDPI) 2024
Online Access:https://www.scopus.com/inward/record.uri?eid=2-s2.0-85208485240&doi=10.3390%2fma17215391&partnerID=40&md5=dcb587f97da8b27dd552621f8abc4895
id 2-s2.0-85208485240
spelling 2-s2.0-85208485240
Chong K.; Mhd Noor E.E.; Amir A.; Baig M.F.
Study on Welding Characteristics and Parameters of Gas Metal Arc Welding for A516 Grade 70 Steel with ER70S-6 and ER308LSi Filler Materials
2024
Materials
17
21
10.3390/ma17215391
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85208485240&doi=10.3390%2fma17215391&partnerID=40&md5=dcb587f97da8b27dd552621f8abc4895
Welding is a crucial process in joining metals, especially in the fabrication industry. Thisresearch aimed to investigate the effects of using two different filler materials, ER70S-6 and ER308LSi, with nine combinations of wire feeder speed (WFS) and shielding gas flow rate (GFR), on weld joints. The study focused on the weld quality and material properties of Gas Metal Arc Welded (GMAW) butt joints of ASTM A516 G70 plates, characterized through visual inspection, liquid penetrant testing, tensile testing, hardness testing, and optical microscopy. Results indicated that the highest ultimate tensile strength and hardness were achieved at 4 m/min WFS and 15 L/min GFR with ER70S-6, and 5 m/min WFS and 20 L/min GFR with ER308LSi. The specimens welded with ER308LSi demonstrated superior mechanical properties compared to those welded with ER70S-6. Additionally, the study revealed the influence of microstructural changes from the base metal (BM) to the heat-affected zone (HAZ) and fusion zone (FZ), with finer and more compact grain structures contributing to higher hardness values. These findings underscore the importance of selecting appropriate filler materials, WFS, and GFR to achieve the desired weld quality and material properties for A516 G70 low-carbon steel welded joints. © 2024 by the authors.
Multidisciplinary Digital Publishing Institute (MDPI)
19961944
English
Article
All Open Access; Gold Open Access
author Chong K.; Mhd Noor E.E.; Amir A.; Baig M.F.
spellingShingle Chong K.; Mhd Noor E.E.; Amir A.; Baig M.F.
Study on Welding Characteristics and Parameters of Gas Metal Arc Welding for A516 Grade 70 Steel with ER70S-6 and ER308LSi Filler Materials
author_facet Chong K.; Mhd Noor E.E.; Amir A.; Baig M.F.
author_sort Chong K.; Mhd Noor E.E.; Amir A.; Baig M.F.
title Study on Welding Characteristics and Parameters of Gas Metal Arc Welding for A516 Grade 70 Steel with ER70S-6 and ER308LSi Filler Materials
title_short Study on Welding Characteristics and Parameters of Gas Metal Arc Welding for A516 Grade 70 Steel with ER70S-6 and ER308LSi Filler Materials
title_full Study on Welding Characteristics and Parameters of Gas Metal Arc Welding for A516 Grade 70 Steel with ER70S-6 and ER308LSi Filler Materials
title_fullStr Study on Welding Characteristics and Parameters of Gas Metal Arc Welding for A516 Grade 70 Steel with ER70S-6 and ER308LSi Filler Materials
title_full_unstemmed Study on Welding Characteristics and Parameters of Gas Metal Arc Welding for A516 Grade 70 Steel with ER70S-6 and ER308LSi Filler Materials
title_sort Study on Welding Characteristics and Parameters of Gas Metal Arc Welding for A516 Grade 70 Steel with ER70S-6 and ER308LSi Filler Materials
publishDate 2024
container_title Materials
container_volume 17
container_issue 21
doi_str_mv 10.3390/ma17215391
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85208485240&doi=10.3390%2fma17215391&partnerID=40&md5=dcb587f97da8b27dd552621f8abc4895
description Welding is a crucial process in joining metals, especially in the fabrication industry. Thisresearch aimed to investigate the effects of using two different filler materials, ER70S-6 and ER308LSi, with nine combinations of wire feeder speed (WFS) and shielding gas flow rate (GFR), on weld joints. The study focused on the weld quality and material properties of Gas Metal Arc Welded (GMAW) butt joints of ASTM A516 G70 plates, characterized through visual inspection, liquid penetrant testing, tensile testing, hardness testing, and optical microscopy. Results indicated that the highest ultimate tensile strength and hardness were achieved at 4 m/min WFS and 15 L/min GFR with ER70S-6, and 5 m/min WFS and 20 L/min GFR with ER308LSi. The specimens welded with ER308LSi demonstrated superior mechanical properties compared to those welded with ER70S-6. Additionally, the study revealed the influence of microstructural changes from the base metal (BM) to the heat-affected zone (HAZ) and fusion zone (FZ), with finer and more compact grain structures contributing to higher hardness values. These findings underscore the importance of selecting appropriate filler materials, WFS, and GFR to achieve the desired weld quality and material properties for A516 G70 low-carbon steel welded joints. © 2024 by the authors.
publisher Multidisciplinary Digital Publishing Institute (MDPI)
issn 19961944
language English
format Article
accesstype All Open Access; Gold Open Access
record_format scopus
collection Scopus
_version_ 1818940550354567168