Microstructural and mechanical investigation of brazing 304L Stainless Steel with corner joint using a Ni-based shim and wire

This study investigated a suitable filler metal, diffusion depth of the elements of this filler metal in the base metal, and its effect on the mechanical properties of brazing bonding of sheets with different thicknesses of 304L stainless steel. For this purpose, brazing was performed with thermal i...

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Main Authors: Hedayat Mohammad Soltani, Morteza Tayebi
Format: Article
Language:English
Published: IOP Publishing 2021-01-01
Series:Materials Research Express
Subjects:
Online Access:https://doi.org/10.1088/2053-1591/abf76c
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author Hedayat Mohammad Soltani
Morteza Tayebi
author_facet Hedayat Mohammad Soltani
Morteza Tayebi
author_sort Hedayat Mohammad Soltani
collection DOAJ
description This study investigated a suitable filler metal, diffusion depth of the elements of this filler metal in the base metal, and its effect on the mechanical properties of brazing bonding of sheets with different thicknesses of 304L stainless steel. For this purpose, brazing was performed with thermal induction under a vacuum of 10 ^−5 mbar and filler metal BNi-2 at the corner structures. First, the microstructure of different joint regions including base metals, Ni affected areas, and interfaces were examined by scanning electron microscopy and then the relationships between microstructure and microhardness were compared. In sheets with different thicknesses, the differences in diffusion depth were observed. Moreover, the microhardness of different areas of the braze was revealed to be completely affected by the diffusion of nickel. Finally, it was found that, for the bonding between 304L sheets with different thicknesses, BNi-2 filler metal had reasonable strength, diffusion, and filling for vacuum applications.
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spelling doaj.art-aa7f4d210f54471ba492490b082334f92023-08-09T16:00:24ZengIOP PublishingMaterials Research Express2053-15912021-01-018404653210.1088/2053-1591/abf76cMicrostructural and mechanical investigation of brazing 304L Stainless Steel with corner joint using a Ni-based shim and wireHedayat Mohammad Soltani0https://orcid.org/0000-0001-9361-1828Morteza Tayebi1https://orcid.org/0000-0002-6237-5938Mining and Metallurgical Engineering Department, Amirkabir University , Tehran, IranYoung Researchers and Elites Club, Science and Research Branch, Islamic Azad University , Tehran, IranThis study investigated a suitable filler metal, diffusion depth of the elements of this filler metal in the base metal, and its effect on the mechanical properties of brazing bonding of sheets with different thicknesses of 304L stainless steel. For this purpose, brazing was performed with thermal induction under a vacuum of 10 ^−5 mbar and filler metal BNi-2 at the corner structures. First, the microstructure of different joint regions including base metals, Ni affected areas, and interfaces were examined by scanning electron microscopy and then the relationships between microstructure and microhardness were compared. In sheets with different thicknesses, the differences in diffusion depth were observed. Moreover, the microhardness of different areas of the braze was revealed to be completely affected by the diffusion of nickel. Finally, it was found that, for the bonding between 304L sheets with different thicknesses, BNi-2 filler metal had reasonable strength, diffusion, and filling for vacuum applications.https://doi.org/10.1088/2053-1591/abf76cinduction brazing304L austenitic stainless steelvacuumNi based filler metals
spellingShingle Hedayat Mohammad Soltani
Morteza Tayebi
Microstructural and mechanical investigation of brazing 304L Stainless Steel with corner joint using a Ni-based shim and wire
Materials Research Express
induction brazing
304L austenitic stainless steel
vacuum
Ni based filler metals
title Microstructural and mechanical investigation of brazing 304L Stainless Steel with corner joint using a Ni-based shim and wire
title_full Microstructural and mechanical investigation of brazing 304L Stainless Steel with corner joint using a Ni-based shim and wire
title_fullStr Microstructural and mechanical investigation of brazing 304L Stainless Steel with corner joint using a Ni-based shim and wire
title_full_unstemmed Microstructural and mechanical investigation of brazing 304L Stainless Steel with corner joint using a Ni-based shim and wire
title_short Microstructural and mechanical investigation of brazing 304L Stainless Steel with corner joint using a Ni-based shim and wire
title_sort microstructural and mechanical investigation of brazing 304l stainless steel with corner joint using a ni based shim and wire
topic induction brazing
304L austenitic stainless steel
vacuum
Ni based filler metals
url https://doi.org/10.1088/2053-1591/abf76c
work_keys_str_mv AT hedayatmohammadsoltani microstructuralandmechanicalinvestigationofbrazing304lstainlesssteelwithcornerjointusinganibasedshimandwire
AT mortezatayebi microstructuralandmechanicalinvestigationofbrazing304lstainlesssteelwithcornerjointusinganibasedshimandwire