Mechanical and microstructural characterization of functionally graded Inconel 825 - SS316L fabricated using wire arc additive manufacturing
This work aims to fabricate the functionally graded Inconel 825 - SS316L wall using the Cold Metal Transfer (CMT) based Wire Arc Additive Manufacturing (WAAM) process. The mechanical behavior of the fabricated wall was appraised with the help of room temperature tensile and microhardness tests on th...
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doaj-2f76cefcd2594e57a9137003e26982c22021-08-28T04:46:21ZengElsevierJournal of Materials Research and Technology2238-78542021-11-0115661669Mechanical and microstructural characterization of functionally graded Inconel 825 - SS316L fabricated using wire arc additive manufacturingT.S. Senthil0S. Ramesh Babu1M. Puviyarasan2V. Dhinakaran3Department of Mechanical Engineering, Panimalar Engineering College, Anna University, Chennai, Tamilnadu, India; Corresponding author.Department of Mechanical Engineering, Sri Venkateswara College of Engineering, Chennai, Tamilnadu, IndiaDepartment of Mechanical Engineering, Panimalar Engineering College, Anna University, Chennai, Tamilnadu, IndiaDepartment of Mechanical Engineering, Chennai Institute of Technology, Chennai, Tamilnadu, IndiaThis work aims to fabricate the functionally graded Inconel 825 - SS316L wall using the Cold Metal Transfer (CMT) based Wire Arc Additive Manufacturing (WAAM) process. The mechanical behavior of the fabricated wall was appraised with the help of room temperature tensile and microhardness tests on the specimens cut from Inconel 825, SS316L, and the interface regions. Fracture morphology revealed the failure of all the specimens after sufficient plastic deformation, indicating ductile fracture. A change in microhardness was observed at the interface region. The optical micrograph revealed a continuous cellular–dendritic and discontinuous cellular–dendritic region in the Inconel 825 region, whereas the SS316L region was comprised of δ ferrite in the primary austenitic (γ) dendrites. The Energy Dispersive Spectroscopy (EDS) line scans of the FGM wall revealed a gradual change in the Ni and Fe content throughout the interface, signifying a successful fabrication of the FGM.http://www.sciencedirect.com/science/article/pii/S2238785421008851Functionally graded material (FGM)Wire arc additive manufacturing (WAAM)Cold metal transfer (CMT)MicrostructureInconel 825SS316L |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
T.S. Senthil S. Ramesh Babu M. Puviyarasan V. Dhinakaran |
spellingShingle |
T.S. Senthil S. Ramesh Babu M. Puviyarasan V. Dhinakaran Mechanical and microstructural characterization of functionally graded Inconel 825 - SS316L fabricated using wire arc additive manufacturing Journal of Materials Research and Technology Functionally graded material (FGM) Wire arc additive manufacturing (WAAM) Cold metal transfer (CMT) Microstructure Inconel 825 SS316L |
author_facet |
T.S. Senthil S. Ramesh Babu M. Puviyarasan V. Dhinakaran |
author_sort |
T.S. Senthil |
title |
Mechanical and microstructural characterization of functionally graded Inconel 825 - SS316L fabricated using wire arc additive manufacturing |
title_short |
Mechanical and microstructural characterization of functionally graded Inconel 825 - SS316L fabricated using wire arc additive manufacturing |
title_full |
Mechanical and microstructural characterization of functionally graded Inconel 825 - SS316L fabricated using wire arc additive manufacturing |
title_fullStr |
Mechanical and microstructural characterization of functionally graded Inconel 825 - SS316L fabricated using wire arc additive manufacturing |
title_full_unstemmed |
Mechanical and microstructural characterization of functionally graded Inconel 825 - SS316L fabricated using wire arc additive manufacturing |
title_sort |
mechanical and microstructural characterization of functionally graded inconel 825 - ss316l fabricated using wire arc additive manufacturing |
publisher |
Elsevier |
series |
Journal of Materials Research and Technology |
issn |
2238-7854 |
publishDate |
2021-11-01 |
description |
This work aims to fabricate the functionally graded Inconel 825 - SS316L wall using the Cold Metal Transfer (CMT) based Wire Arc Additive Manufacturing (WAAM) process. The mechanical behavior of the fabricated wall was appraised with the help of room temperature tensile and microhardness tests on the specimens cut from Inconel 825, SS316L, and the interface regions. Fracture morphology revealed the failure of all the specimens after sufficient plastic deformation, indicating ductile fracture. A change in microhardness was observed at the interface region. The optical micrograph revealed a continuous cellular–dendritic and discontinuous cellular–dendritic region in the Inconel 825 region, whereas the SS316L region was comprised of δ ferrite in the primary austenitic (γ) dendrites. The Energy Dispersive Spectroscopy (EDS) line scans of the FGM wall revealed a gradual change in the Ni and Fe content throughout the interface, signifying a successful fabrication of the FGM. |
topic |
Functionally graded material (FGM) Wire arc additive manufacturing (WAAM) Cold metal transfer (CMT) Microstructure Inconel 825 SS316L |
url |
http://www.sciencedirect.com/science/article/pii/S2238785421008851 |
work_keys_str_mv |
AT tssenthil mechanicalandmicrostructuralcharacterizationoffunctionallygradedinconel825ss316lfabricatedusingwirearcadditivemanufacturing AT srameshbabu mechanicalandmicrostructuralcharacterizationoffunctionallygradedinconel825ss316lfabricatedusingwirearcadditivemanufacturing AT mpuviyarasan mechanicalandmicrostructuralcharacterizationoffunctionallygradedinconel825ss316lfabricatedusingwirearcadditivemanufacturing AT vdhinakaran mechanicalandmicrostructuralcharacterizationoffunctionallygradedinconel825ss316lfabricatedusingwirearcadditivemanufacturing |
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