Characterizing the Effect of Post Weld Heat Treatment on the Mechanical Properties of Laser Beam Welded Additive Manufactured Ti6Al4V

Esther T. Akinlabi; Peter O. Omoniyi; Tien-Chien Jen; Rasheedat Modupe Mahamood; Frederick Mwema; Stephen A. Akinlabi; Cynthia Samuel Abima

doi:10.1115/imece2023-115057

Characterizing the Effect of Post Weld Heat Treatment on the Mechanical Properties of Laser Beam Welded Additive Manufactured Ti6Al4V

Esther T. Akinlabi, Peter O. Omoniyi, Tien-Chien Jen, Rasheedat Modupe Mahamood, Frederick Mwema, Stephen A. Akinlabi, Cynthia Samuel Abima

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

The Ti6Al4V alloys are finding various industrial applications due to their attractive attributes, which can be enhanced via heat-treatment processes. In this study, titanium sheets (Ti6Al4V) were manufactured through laser metal deposition (LMD) using Ti6Al4V powder of particle sizes between 45–90 μm. The build parameters used are optimized at a laser power of 400 W, powder feed rate of 2.4 g/min, hatch spacing of 0.9652 mm, and scanning rotated at 90° between successive layers. The built block is sliced using a wire-electric discharge machine (EDM) into sheets of 2 mm thickness. The resulting blocks were joined using the butt configuration through laser beam welding technology. Post-weld heat treatments were conducted on the welds above the β transus temperature of 995°C. Material characterizations of the evolving properties were conducted using Optical Microscopy, Vickers microhardness, and tensile testing. The investigations show that the heat-treated samples have enhanced properties and can be recommended. The outcome of this research is significant as it gives insight into the optimization of laser welding and post-weld heat treatment parameters of Titanium Alloy Grade 5 for industrial applications.

Original language	English
Title of host publication	Proceedings of the ASME 2023 International Mechanical Engineering Congress and Exposition. Volume 4: Advanced Materials: Design, Processing, Characterization and Applications; Advances in Aerospace Technology. New Orleans, Louisiana, USA. October 29–November 2, 2023.
Publisher	American Society of Mechanical Engineers (ASME)
Number of pages	5
ISBN (Electronic)	9780791887615
DOIs	https://doi.org/10.1115/imece2023-115057
Publication status	Published - 29 Oct 2023
Event	ASME 2023 International Mechanical Engineering Congress and Exposition: Where Engineering Disciplines Intersect and Innovation Begins - New Orleans, United States Duration: 29 Oct 2022 → 2 Nov 2023 https://event.asme.org/IMECE-2023

Conference

Conference	ASME 2023 International Mechanical Engineering Congress and Exposition
Abbreviated title	IMECE 2023
Country/Territory	United States
City	New Orleans
Period	29/10/22 → 2/11/23
Internet address	https://event.asme.org/IMECE-2023

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1115/imece2023-115057

Cite this

Akinlabi, E. T., Omoniyi, P. O., Jen, T.-C., Mahamood, R. M., Mwema, F., Akinlabi, S. A., & Abima, C. S. (2023). Characterizing the Effect of Post Weld Heat Treatment on the Mechanical Properties of Laser Beam Welded Additive Manufactured Ti6Al4V. In Proceedings of the ASME 2023 International Mechanical Engineering Congress and Exposition. Volume 4: Advanced Materials: Design, Processing, Characterization and Applications; Advances in Aerospace Technology. New Orleans, Louisiana, USA. October 29–November 2, 2023. Article V004T04A032 American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/imece2023-115057

Akinlabi, Esther T. ; Omoniyi, Peter O. ; Jen, Tien-Chien et al. / Characterizing the Effect of Post Weld Heat Treatment on the Mechanical Properties of Laser Beam Welded Additive Manufactured Ti6Al4V. Proceedings of the ASME 2023 International Mechanical Engineering Congress and Exposition. Volume 4: Advanced Materials: Design, Processing, Characterization and Applications; Advances in Aerospace Technology. New Orleans, Louisiana, USA. October 29–November 2, 2023.. American Society of Mechanical Engineers (ASME), 2023.

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title = "Characterizing the Effect of Post Weld Heat Treatment on the Mechanical Properties of Laser Beam Welded Additive Manufactured Ti6Al4V",

abstract = "The Ti6Al4V alloys are finding various industrial applications due to their attractive attributes, which can be enhanced via heat-treatment processes. In this study, titanium sheets (Ti6Al4V) were manufactured through laser metal deposition (LMD) using Ti6Al4V powder of particle sizes between 45–90 μm. The build parameters used are optimized at a laser power of 400 W, powder feed rate of 2.4 g/min, hatch spacing of 0.9652 mm, and scanning rotated at 90° between successive layers. The built block is sliced using a wire-electric discharge machine (EDM) into sheets of 2 mm thickness. The resulting blocks were joined using the butt configuration through laser beam welding technology. Post-weld heat treatments were conducted on the welds above the β transus temperature of 995°C. Material characterizations of the evolving properties were conducted using Optical Microscopy, Vickers microhardness, and tensile testing. The investigations show that the heat-treated samples have enhanced properties and can be recommended. The outcome of this research is significant as it gives insight into the optimization of laser welding and post-weld heat treatment parameters of Titanium Alloy Grade 5 for industrial applications.",

author = "Akinlabi, {Esther T.} and Omoniyi, {Peter O.} and Tien-Chien Jen and Mahamood, {Rasheedat Modupe} and Frederick Mwema and Akinlabi, {Stephen A.} and Abima, {Cynthia Samuel}",

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Akinlabi, ET, Omoniyi, PO, Jen, T-C, Mahamood, RM , Mwema, F, Akinlabi, SA & Abima, CS 2023, Characterizing the Effect of Post Weld Heat Treatment on the Mechanical Properties of Laser Beam Welded Additive Manufactured Ti6Al4V. in Proceedings of the ASME 2023 International Mechanical Engineering Congress and Exposition. Volume 4: Advanced Materials: Design, Processing, Characterization and Applications; Advances in Aerospace Technology. New Orleans, Louisiana, USA. October 29–November 2, 2023.., V004T04A032, American Society of Mechanical Engineers (ASME), ASME 2023 International Mechanical Engineering Congress and Exposition, New Orleans, Louisiana, United States, 29/10/22. https://doi.org/10.1115/imece2023-115057

Characterizing the Effect of Post Weld Heat Treatment on the Mechanical Properties of Laser Beam Welded Additive Manufactured Ti6Al4V. / Akinlabi, Esther T.; Omoniyi, Peter O.; Jen, Tien-Chien et al.
Proceedings of the ASME 2023 International Mechanical Engineering Congress and Exposition. Volume 4: Advanced Materials: Design, Processing, Characterization and Applications; Advances in Aerospace Technology. New Orleans, Louisiana, USA. October 29–November 2, 2023.. American Society of Mechanical Engineers (ASME), 2023. V004T04A032.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AU - Mahamood, Rasheedat Modupe

AU - Mwema, Frederick

AU - Akinlabi, Stephen A.

AU - Abima, Cynthia Samuel

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N2 - The Ti6Al4V alloys are finding various industrial applications due to their attractive attributes, which can be enhanced via heat-treatment processes. In this study, titanium sheets (Ti6Al4V) were manufactured through laser metal deposition (LMD) using Ti6Al4V powder of particle sizes between 45–90 μm. The build parameters used are optimized at a laser power of 400 W, powder feed rate of 2.4 g/min, hatch spacing of 0.9652 mm, and scanning rotated at 90° between successive layers. The built block is sliced using a wire-electric discharge machine (EDM) into sheets of 2 mm thickness. The resulting blocks were joined using the butt configuration through laser beam welding technology. Post-weld heat treatments were conducted on the welds above the β transus temperature of 995°C. Material characterizations of the evolving properties were conducted using Optical Microscopy, Vickers microhardness, and tensile testing. The investigations show that the heat-treated samples have enhanced properties and can be recommended. The outcome of this research is significant as it gives insight into the optimization of laser welding and post-weld heat treatment parameters of Titanium Alloy Grade 5 for industrial applications.

AB - The Ti6Al4V alloys are finding various industrial applications due to their attractive attributes, which can be enhanced via heat-treatment processes. In this study, titanium sheets (Ti6Al4V) were manufactured through laser metal deposition (LMD) using Ti6Al4V powder of particle sizes between 45–90 μm. The build parameters used are optimized at a laser power of 400 W, powder feed rate of 2.4 g/min, hatch spacing of 0.9652 mm, and scanning rotated at 90° between successive layers. The built block is sliced using a wire-electric discharge machine (EDM) into sheets of 2 mm thickness. The resulting blocks were joined using the butt configuration through laser beam welding technology. Post-weld heat treatments were conducted on the welds above the β transus temperature of 995°C. Material characterizations of the evolving properties were conducted using Optical Microscopy, Vickers microhardness, and tensile testing. The investigations show that the heat-treated samples have enhanced properties and can be recommended. The outcome of this research is significant as it gives insight into the optimization of laser welding and post-weld heat treatment parameters of Titanium Alloy Grade 5 for industrial applications.

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Akinlabi ET, Omoniyi PO, Jen TC, Mahamood RM , Mwema F, Akinlabi SA et al. Characterizing the Effect of Post Weld Heat Treatment on the Mechanical Properties of Laser Beam Welded Additive Manufactured Ti6Al4V. In Proceedings of the ASME 2023 International Mechanical Engineering Congress and Exposition. Volume 4: Advanced Materials: Design, Processing, Characterization and Applications; Advances in Aerospace Technology. New Orleans, Louisiana, USA. October 29–November 2, 2023.. American Society of Mechanical Engineers (ASME). 2023. V004T04A032 doi: 10.1115/imece2023-115057