Effects of Autogenous Gas Tungsten Arc Welding (GTAW) on Corrosion Resistance of Stainless Steel 316L
Abstract
:1. Introduction
2. Experimental Procedure
2.1. GTAW Process
2.2. Characterization
3. Results and Discussion
3.1. Arc Plasma Distribution and Microstructure of Molten Pool
3.2. Corrosion Behavior
4. Conclusions
Author Contributions
Funding
Data Availability Statement
Conflicts of Interest
References
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Element | Fe | Cr | Ni | Mo | C | Mn | P | S | Si | Cu | N | Nb |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Composition (wt.%) | Bal. | 18.2 | 11.5 | 2.50 | 0.0180 | 1.84 | 0.020 | 0.0160 | 0.690 | 0.160 | 0.0675 | 0.032 |
Parameters | Value |
---|---|
Set current | 135 A |
Shielding gas | Argon 100%, 20 L/min |
Welding speed | 5 mm/s |
Tungsten electrode | 60-degree tip angle, 3.2 mm diameter |
Contact tip to work distance | 3, 5, and 7 mm |
Cases | Voltage (V) | Current (A) | Calculated Heat Input (J/mm) |
---|---|---|---|
CTWD 3 mm | 115.9 | 14.00 | 19,771 |
CTWD 5 mm | 135.2 | 16.34 | 26,510 |
CTWD 7 mm | 146.9 | 17.70 | 31,202 |
CTWD 3 mm | CTWD 5 mm | CTWD 7 mm | |
---|---|---|---|
Bead width (mm) | 6.68 | 7.79 | 4.91 |
Maximum penetration depth (mm) | 1.14 | 1.04 | 1.48 |
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Song, I.; Jeong, G.-H.; Kim, S.-K.; Kim, Y.-H.; Murphy, A.B.; Park, T.-K.; Kim, D.; Park, H.; Cho, D.-W. Effects of Autogenous Gas Tungsten Arc Welding (GTAW) on Corrosion Resistance of Stainless Steel 316L. Processes 2024, 12, 1757. https://doi.org/10.3390/pr12081757
Song I, Jeong G-H, Kim S-K, Kim Y-H, Murphy AB, Park T-K, Kim D, Park H, Cho D-W. Effects of Autogenous Gas Tungsten Arc Welding (GTAW) on Corrosion Resistance of Stainless Steel 316L. Processes. 2024; 12(8):1757. https://doi.org/10.3390/pr12081757
Chicago/Turabian StyleSong, Inyoung, Gwang-Ho Jeong, Sang-Kyo Kim, Yun-Hwan Kim, Anthony B. Murphy, Tae-Kook Park, Ducklae Kim, Hyunwoo Park, and Dae-Won Cho. 2024. "Effects of Autogenous Gas Tungsten Arc Welding (GTAW) on Corrosion Resistance of Stainless Steel 316L" Processes 12, no. 8: 1757. https://doi.org/10.3390/pr12081757