KRISHNASAMY, Saravanakumar ; SAMBASIVAM, Saravanan ; VAIYAMPALAYAM GOVINDARAJ, Balaji . Microstructural and Mechanical Characterization of WAAM-fabricated Inconel 625: Heat Treatment Effects. Strojniški vestnik - Journal of Mechanical Engineering, [S.l.], v. 71, n.1-2, p. 21-27, august 2024. ISSN 0039-2480. Available at: <https://www.sv-jme.eu/article/microstructural-and-mechanical-characterization-of-waam-fabricated-inconel-625-heat-treatment-effects/>. Date accessed: 26 apr. 2025. doi:http://dx.doi.org/10.5545/sv-jme.2024.986.
Krishnasamy, S., Sambasivam, S., & Vaiyampalayam Govindaraj, B. (2025). Microstructural and Mechanical Characterization of WAAM-fabricated Inconel 625: Heat Treatment Effects. Strojniški vestnik - Journal of Mechanical Engineering, 71(1-2), 21-27. doi:http://dx.doi.org/10.5545/sv-jme.2024.986
@article{sv-jmesv-jme.2024.986,
author = {Saravanakumar Krishnasamy and Saravanan Sambasivam and Balaji Vaiyampalayam Govindaraj},
title = {Microstructural and Mechanical Characterization of WAAM-fabricated Inconel 625: Heat Treatment Effects},
journal = {Strojniški vestnik - Journal of Mechanical Engineering},
volume = {71},
number = {1-2},
year = {2025},
keywords = {Wire Arc Additive Manufacturing (WAAM); Heat treatment; Optical microscope; tensile strength; },
abstract = {Wire arc additive manufacturing (WAAM) is a promising technique for producing complex geometries of nickel-based superalloys, such as Inconel 625. In this work, the microstructure and mechanical properties of Inconel 625 alloy produced by gas tungsten arc welding (GTAW) process of WAAM technology were analyzed to investigate the effects of heat treatment on the top and bottom zones of the multi-layered wall structure. The deposited specimens were heat treated at 980 °C for 2 hours, then water quenched (solution annealing). After heat treatment, microstructure reveals that the most common phases like laves, gamma, and mono carbides (MC) are dissolved, which is clear by optical microscopy (OM), scanning electron microscopy (SEM), and energy dispersive spectroscopy (EDS). Even after the heat treatment process, mechanical properties, such as micro-hardness results, demonstrate that the bottom zone of the multilayer wall structure has a higher hardness value than the top zone. After the secondary phases were eliminated by the solution annealing procedure, the ultimate tensile strength and yield strength were increased by nearly 17 % to 38 % and 15 % to 22 % in the top and bottom one of the multilayer wall structures, respectively.},
issn = {0039-2480}, pages = {21-27}, doi = {10.5545/sv-jme.2024.986},
url = {https://www.sv-jme.eu/article/microstructural-and-mechanical-characterization-of-waam-fabricated-inconel-625-heat-treatment-effects/}
}
Krishnasamy, S., Sambasivam, S., Vaiyampalayam Govindaraj, B. 2025 August 71. Microstructural and Mechanical Characterization of WAAM-fabricated Inconel 625: Heat Treatment Effects. Strojniški vestnik - Journal of Mechanical Engineering. [Online] 71:1-2
%A Krishnasamy, Saravanakumar %A Sambasivam, Saravanan %A Vaiyampalayam Govindaraj, Balaji %D 2025 %T Microstructural and Mechanical Characterization of WAAM-fabricated Inconel 625: Heat Treatment Effects %B 2025 %9 Wire Arc Additive Manufacturing (WAAM); Heat treatment; Optical microscope; tensile strength; %! Microstructural and Mechanical Characterization of WAAM-fabricated Inconel 625: Heat Treatment Effects %K Wire Arc Additive Manufacturing (WAAM); Heat treatment; Optical microscope; tensile strength; %X Wire arc additive manufacturing (WAAM) is a promising technique for producing complex geometries of nickel-based superalloys, such as Inconel 625. In this work, the microstructure and mechanical properties of Inconel 625 alloy produced by gas tungsten arc welding (GTAW) process of WAAM technology were analyzed to investigate the effects of heat treatment on the top and bottom zones of the multi-layered wall structure. The deposited specimens were heat treated at 980 °C for 2 hours, then water quenched (solution annealing). After heat treatment, microstructure reveals that the most common phases like laves, gamma, and mono carbides (MC) are dissolved, which is clear by optical microscopy (OM), scanning electron microscopy (SEM), and energy dispersive spectroscopy (EDS). Even after the heat treatment process, mechanical properties, such as micro-hardness results, demonstrate that the bottom zone of the multilayer wall structure has a higher hardness value than the top zone. After the secondary phases were eliminated by the solution annealing procedure, the ultimate tensile strength and yield strength were increased by nearly 17 % to 38 % and 15 % to 22 % in the top and bottom one of the multilayer wall structures, respectively. %U https://www.sv-jme.eu/article/microstructural-and-mechanical-characterization-of-waam-fabricated-inconel-625-heat-treatment-effects/ %0 Journal Article %R 10.5545/sv-jme.2024.986 %& 21 %P 7 %J Strojniški vestnik - Journal of Mechanical Engineering %V 71 %N 1-2 %@ 0039-2480 %8 2024-08-20 %7 2024-08-20
Krishnasamy, Saravanakumar, Saravanan Sambasivam, & Balaji Vaiyampalayam Govindaraj. "Microstructural and Mechanical Characterization of WAAM-fabricated Inconel 625: Heat Treatment Effects." Strojniški vestnik - Journal of Mechanical Engineering [Online], 71.1-2 (2025): 21-27. Web. 26 Apr. 2025
TY - JOUR AU - Krishnasamy, Saravanakumar AU - Sambasivam, Saravanan AU - Vaiyampalayam Govindaraj, Balaji PY - 2025 TI - Microstructural and Mechanical Characterization of WAAM-fabricated Inconel 625: Heat Treatment Effects JF - Strojniški vestnik - Journal of Mechanical Engineering DO - 10.5545/sv-jme.2024.986 KW - Wire Arc Additive Manufacturing (WAAM); Heat treatment; Optical microscope; tensile strength; N2 - Wire arc additive manufacturing (WAAM) is a promising technique for producing complex geometries of nickel-based superalloys, such as Inconel 625. In this work, the microstructure and mechanical properties of Inconel 625 alloy produced by gas tungsten arc welding (GTAW) process of WAAM technology were analyzed to investigate the effects of heat treatment on the top and bottom zones of the multi-layered wall structure. The deposited specimens were heat treated at 980 °C for 2 hours, then water quenched (solution annealing). After heat treatment, microstructure reveals that the most common phases like laves, gamma, and mono carbides (MC) are dissolved, which is clear by optical microscopy (OM), scanning electron microscopy (SEM), and energy dispersive spectroscopy (EDS). Even after the heat treatment process, mechanical properties, such as micro-hardness results, demonstrate that the bottom zone of the multilayer wall structure has a higher hardness value than the top zone. After the secondary phases were eliminated by the solution annealing procedure, the ultimate tensile strength and yield strength were increased by nearly 17 % to 38 % and 15 % to 22 % in the top and bottom one of the multilayer wall structures, respectively. UR - https://www.sv-jme.eu/article/microstructural-and-mechanical-characterization-of-waam-fabricated-inconel-625-heat-treatment-effects/
@article{{sv-jme}{sv-jme.2024.986},
author = {Krishnasamy, S., Sambasivam, S., Vaiyampalayam Govindaraj, B.},
title = {Microstructural and Mechanical Characterization of WAAM-fabricated Inconel 625: Heat Treatment Effects},
journal = {Strojniški vestnik - Journal of Mechanical Engineering},
volume = {71},
number = {1-2},
year = {2025},
doi = {10.5545/sv-jme.2024.986},
url = {https://www.sv-jme.eu/article/microstructural-and-mechanical-characterization-of-waam-fabricated-inconel-625-heat-treatment-effects/}
}
TY - JOUR AU - Krishnasamy, Saravanakumar AU - Sambasivam, Saravanan AU - Vaiyampalayam Govindaraj, Balaji PY - 2024/08/20 TI - Microstructural and Mechanical Characterization of WAAM-fabricated Inconel 625: Heat Treatment Effects JF - Strojniški vestnik - Journal of Mechanical Engineering; Vol 71, No 1-2 (2025): Strojniški vestnik - Journal of Mechanical Engineering DO - 10.5545/sv-jme.2024.986 KW - Wire Arc Additive Manufacturing (WAAM), Heat treatment, Optical microscope, tensile strength, N2 - Wire arc additive manufacturing (WAAM) is a promising technique for producing complex geometries of nickel-based superalloys, such as Inconel 625. In this work, the microstructure and mechanical properties of Inconel 625 alloy produced by gas tungsten arc welding (GTAW) process of WAAM technology were analyzed to investigate the effects of heat treatment on the top and bottom zones of the multi-layered wall structure. The deposited specimens were heat treated at 980 °C for 2 hours, then water quenched (solution annealing). After heat treatment, microstructure reveals that the most common phases like laves, gamma, and mono carbides (MC) are dissolved, which is clear by optical microscopy (OM), scanning electron microscopy (SEM), and energy dispersive spectroscopy (EDS). Even after the heat treatment process, mechanical properties, such as micro-hardness results, demonstrate that the bottom zone of the multilayer wall structure has a higher hardness value than the top zone. After the secondary phases were eliminated by the solution annealing procedure, the ultimate tensile strength and yield strength were increased by nearly 17 % to 38 % and 15 % to 22 % in the top and bottom one of the multilayer wall structures, respectively. UR - https://www.sv-jme.eu/article/microstructural-and-mechanical-characterization-of-waam-fabricated-inconel-625-heat-treatment-effects/
Krishnasamy, Saravanakumar, Sambasivam, Saravanan, AND Vaiyampalayam Govindaraj, Balaji. "Microstructural and Mechanical Characterization of WAAM-fabricated Inconel 625: Heat Treatment Effects" Strojniški vestnik - Journal of Mechanical Engineering [Online], Volume 71 Number 1-2 (20 August 2024)
Strojniški vestnik - Journal of Mechanical Engineering 71(2025)1-2, 21-27
© The Authors 2025. CC BY 4.0 Int.
Wire arc additive manufacturing (WAAM) is a promising technique for producing complex geometries of nickel-based superalloys, such as Inconel 625. In this work, the microstructure and mechanical properties of Inconel 625 alloy produced by gas tungsten arc welding (GTAW) process of WAAM technology were analyzed to investigate the effects of heat treatment on the top and bottom zones of the multi-layered wall structure. The deposited specimens were heat treated at 980 °C for 2 hours, then water quenched (solution annealing). After heat treatment, microstructure reveals that the most common phases like laves, gamma, and mono carbides (MC) are dissolved, which is clear by optical microscopy (OM), scanning electron microscopy (SEM), and energy dispersive spectroscopy (EDS). Even after the heat treatment process, mechanical properties, such as micro-hardness results, demonstrate that the bottom zone of the multilayer wall structure has a higher hardness value than the top zone. After the secondary phases were eliminated by the solution annealing procedure, the ultimate tensile strength and yield strength were increased by nearly 17 % to 38 % and 15 % to 22 % in the top and bottom one of the multilayer wall structures, respectively.