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Stream/Area:
-
Subject:
-
Paper ID:
IJSREM66126
Volume:
10 |
7 |
Jul 2026
Pages:
1-6
Publication Frequency:
Monthly (12 issues per year)
License:International Journal of Scientific Research in Engineering and Management follows the Creative Commons Attribution 4.0 (CC BY 4.0) License, allowing free use and distribution with proper attribution.
Department of Mechanical Engineering
INSTITUTE OF ENGINEERING AND TECHNOLOGY Dr. RAMMANOHAR LOHIA AVADH UNIVERSITY, AYODHYA-224001 (U.P.)
Department of Mechanical Engineering
INSTITUTE OF ENGINEERING AND TECHNOLOGY Dr. RAMMANOHAR LOHIA AVADH UNIVERSITY, AYODHYA-224001 (U.P.)
Department of Mechanical Engineering
INSTITUTE OF ENGINEERING AND TECHNOLOGY Dr. RAMMANOHAR LOHIA AVADH UNIVERSITY, AYODHYA-224001 (U.P.)
Department of Mechanical Engineering
INSTITUTE OF ENGINEERING AND TECHNOLOGY Dr. RAMMANOHAR LOHIA AVADH UNIVERSITY, AYODHYA-224001 (U.P.)
Wire Arc Additive Manufacturing (WAAM) has emerged as an efficient manufacturing technique for producing large metallic components with reduced material wastage and improved production economy. In the present investigation, an Inconel 718 plate was fabricated using a manually operated Gas Tungsten Arc Welding (GTAW)-based WAAM process under an argon shielding environment. Deposition was carried out with a 3 mm Inconel 718 filler wire employing a welding current of 115–130 A, an arc voltage of 10–13 V, an argon flow rate of 12–15 L/min, and a travel speed ranging from 90 to 150 mm/min. The fabricated plate was subsequently evaluated through tensile, Rockwell hardness, Charpy impact, and Izod impact tests performed according to relevant ASTM standards. The material exhibited an ultimate tensile strength of 1441.72 MPa, a yield strength of 1020.54 MPa, an average hardness of 44.2 HRC, an average Charpy impact energy of 148.67 J, and an average Izod impact energy of 136.67 J. These experimental findings demonstrate that the adopted manual GTAW-based WAAM approach is capable of producing Inconel 718 components possessing a well-balanced combination of strength, hardness, and impact toughness, indicating its potential for demanding engineering applications.
KEYWORDS
This study investigated the feasibility of fabricating Inconel 718 using a manually operated Gas Tungsten Arc Welding (GTAW)-based Wire Arc Additive Manufacturing (WAAM) process. The fabricated plate was successfully produced under the selected deposition conditions and subsequently evaluated through tensile, Rockwell hardness, Charpy impact, and Izod impact testing in accordance with relevant ASTM standards. The experimental results demonstrated an ultimate tensile strength of 1441.72 MPa, a yield strength of 1020.54 MPa, an average Rockwell hardness of 44.2 HRC, a Charpy impact energy of 148.67 J, and an Izod impact energy of 136.67 J. These findings indicate that the adopted fabrication approach is capable of producing Inconel 718 with a satisfactory balance of strength, hardness, and impact toughness. Overall, the investigation confirms that manual GTAW-based WAAM is a practical manufacturing route for producing mechanically reliable Inconel 718 components. The experimental data generated in this work provide a useful reference for future studies involving process optimization, microstructural characterization, post-deposition heat treatment, and the broader application of WAAM in advanced engineering industries.
· [1] ASTM E8/E8M-24, Standard Test Methods for Tension Testing of Metallic Materials, ASTM International, 2024. · [2] ASTM E18-24, Standard Test Methods for Rockwell Hardness of Metallic Materials, ASTM International, 2024. · [3] ASTM E23-24, Standard Test Methods for Notched Bar Impact Testing of Metallic Materials, ASTM International, 2024. · [4] T. A. Rodrigues et al., “Current Status and Perspectives on Wire and Arc Additive Manufacturing (WAAM),” Materials, 2019. · [5] J. Jang et al., “Phase formation kinetics during heat treatments of Inconel 718 deposits based on CMT-WAAM,” Materials Characterization, 2022. · [6] B. Tomar et al., “A review on wire arc additive manufacturing,” Materials Today Communications, 2022. · [7] Y. Li et al., “Comprehensive review of wire arc additive manufacturing,” Results in Engineering, 2022. · [8] E. Hosseini and V. A. Popovich, “A review of mechanical properties of additively manufactured Inconel 718,” Additive Manufacturing, 2019. · [9] C. E. Seow et al., “WAAM Inconel 718: Effect of post-deposition heat treatment,” Materials & Design, 2019. · [10] M. Shahwaz, P. Nath, and I. Sen, “Recent advances in additive manufacturing technologies for Ni-based Inconel superalloys,” Journal of Alloys and Compounds, 2025.
Publication Date
7/17/2026
Peer Review Type
Double-Blind Peer Review
Review Rounds: 2
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