Investigating the microstructure and mechanical properties in furnace brazing Ti–6Al–4V to 17-4 PH stainless steel dissimilar joint with BNi-2 filler metal

Due to the distinct physical and metallurgical characteristics of titanium and steel, the welding of these two materials poses challenges and holds significant importance. This study investigates the impact of brazing time and temperature on the microstructure and mechanical properties of dissimilar...

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Main Authors: Amirreza Ardalani, Homam Naffakh-Moosavy
Format: Article
Language:English
Published: Elsevier 2024-06-01
Series:Journal of Advanced Joining Processes
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2666330924000311
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author Amirreza Ardalani
Homam Naffakh-Moosavy
author_facet Amirreza Ardalani
Homam Naffakh-Moosavy
author_sort Amirreza Ardalani
collection DOAJ
description Due to the distinct physical and metallurgical characteristics of titanium and steel, the welding of these two materials poses challenges and holds significant importance. This study investigates the impact of brazing time and temperature on the microstructure and mechanical properties of dissimilar brazing between 17-4 PH stainless steel and Ti–6Al–4V using BNi-2 as a filler metal, focusing on the formation of brittle compounds like FeTi and Fe2Ti during the brazing process. The joint between these materials is commonly utilized in various industrial applications. The assessment involved the use of optical microscope, scanning electron microscope, shear – tensile test, microhardness test, and wettability measurement. Brazing of the base metals was conducted at temperatures of 1050/1100 °C for durations of 15 and 30 min to determine the optimal temperature and time combination. The results indicated that the best joint properties were achieved at 110 °C for 15 min, with an average shear strength of 38.46 MPa. Contact angle measurements revealed that BNi-2 exhibited superior wettability on 17-4 PH compared to Ti–6Al–4V. Furthermore, increasing the temperature from 1050 to 1100 °C led to a reduction in contact angle from 9.98 to 8.83° for 17-4 PH, and from 16.51 to 10.12° for Ti–6Al–4V indicating an improvement in wettability.
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spelling doaj.art-e2f53cd3e98946948d968162aff69bb02024-03-21T05:37:43ZengElsevierJournal of Advanced Joining Processes2666-33092024-06-019100215Investigating the microstructure and mechanical properties in furnace brazing Ti–6Al–4V to 17-4 PH stainless steel dissimilar joint with BNi-2 filler metalAmirreza Ardalani0Homam Naffakh-Moosavy1Department of Materials Engineering, Tarbiat Modares University (TMU), Tehran, P.O. Box 14115-143, IranCorresponding author.; Department of Materials Engineering, Tarbiat Modares University (TMU), Tehran, P.O. Box 14115-143, IranDue to the distinct physical and metallurgical characteristics of titanium and steel, the welding of these two materials poses challenges and holds significant importance. This study investigates the impact of brazing time and temperature on the microstructure and mechanical properties of dissimilar brazing between 17-4 PH stainless steel and Ti–6Al–4V using BNi-2 as a filler metal, focusing on the formation of brittle compounds like FeTi and Fe2Ti during the brazing process. The joint between these materials is commonly utilized in various industrial applications. The assessment involved the use of optical microscope, scanning electron microscope, shear – tensile test, microhardness test, and wettability measurement. Brazing of the base metals was conducted at temperatures of 1050/1100 °C for durations of 15 and 30 min to determine the optimal temperature and time combination. The results indicated that the best joint properties were achieved at 110 °C for 15 min, with an average shear strength of 38.46 MPa. Contact angle measurements revealed that BNi-2 exhibited superior wettability on 17-4 PH compared to Ti–6Al–4V. Furthermore, increasing the temperature from 1050 to 1100 °C led to a reduction in contact angle from 9.98 to 8.83° for 17-4 PH, and from 16.51 to 10.12° for Ti–6Al–4V indicating an improvement in wettability.http://www.sciencedirect.com/science/article/pii/S2666330924000311Furnace brazingTi–6Al–4V17–4 PH stainless steelDissimilar jointBNi-2 filler metal
spellingShingle Amirreza Ardalani
Homam Naffakh-Moosavy
Investigating the microstructure and mechanical properties in furnace brazing Ti–6Al–4V to 17-4 PH stainless steel dissimilar joint with BNi-2 filler metal
Journal of Advanced Joining Processes
Furnace brazing
Ti–6Al–4V
17–4 PH stainless steel
Dissimilar joint
BNi-2 filler metal
title Investigating the microstructure and mechanical properties in furnace brazing Ti–6Al–4V to 17-4 PH stainless steel dissimilar joint with BNi-2 filler metal
title_full Investigating the microstructure and mechanical properties in furnace brazing Ti–6Al–4V to 17-4 PH stainless steel dissimilar joint with BNi-2 filler metal
title_fullStr Investigating the microstructure and mechanical properties in furnace brazing Ti–6Al–4V to 17-4 PH stainless steel dissimilar joint with BNi-2 filler metal
title_full_unstemmed Investigating the microstructure and mechanical properties in furnace brazing Ti–6Al–4V to 17-4 PH stainless steel dissimilar joint with BNi-2 filler metal
title_short Investigating the microstructure and mechanical properties in furnace brazing Ti–6Al–4V to 17-4 PH stainless steel dissimilar joint with BNi-2 filler metal
title_sort investigating the microstructure and mechanical properties in furnace brazing ti 6al 4v to 17 4 ph stainless steel dissimilar joint with bni 2 filler metal
topic Furnace brazing
Ti–6Al–4V
17–4 PH stainless steel
Dissimilar joint
BNi-2 filler metal
url http://www.sciencedirect.com/science/article/pii/S2666330924000311
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AT homamnaffakhmoosavy investigatingthemicrostructureandmechanicalpropertiesinfurnacebrazingti6al4vto174phstainlesssteeldissimilarjointwithbni2fillermetal