Effect of Pulsating Current on 304HCU GTAW Joints

Authors

  • Tushar Singh Tomar B. Tech., Mechanical Engineering, S. R. M. Institute of Science & Technology, Kattankulathur, Chennai, Tamil Nadu, INDIA

DOI:

https://doi.org/10.31033/ijemr.12.4.27

Keywords:

Pulsating, PCGTAW, Pipes

Abstract

Super 304HCu super austenitic stainless-steel tubes containing 2.3 to 3 (Wt.%) Copper (Cu) are used in high temperature tubes and reheating of nuclear power plants. In general, stainless steel austenitic welded by conventional gas tungsten arc welding (CC-GTAW) now produces solid column grains, alloy disintegration and may result in lower mechanical properties. Pulsed current gas tungsten arc welding (PCGTAW) can control the formation of solids by altering the existing gradients in the weld.

Super 304HCu OD 60.5 mm tubes and 3.5 mm wall thickness are automatically welded using CC and PC-GTAW processes. The joints can be detected using optical microscopy, a robust machine and a Vickers microhardness tester. The thermal properties of weld joints were tested and associated with their sub-structural features.

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Published

2022-08-31
CITATION
DOI: 10.31033/ijemr.12.4.27
Published: 2022-08-31

How to Cite

Tushar Singh Tomar. (2022). Effect of Pulsating Current on 304HCU GTAW Joints. International Journal of Engineering and Management Research, 12(4), 209–223. https://doi.org/10.31033/ijemr.12.4.27

Issue

Vol. 12 No. 4 (2022): August Issue

Section

Articles

License

Copyright (c) 2022 Tushar Singh Tomar

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

Research Articles in 'International Journal of Engineering and Management Research' are Open Access articles published under the Creative Commons CC BY License Creative Commons Attribution 4.0 International License http://creativecommons.org/licenses/by/4.0/. This license allows you to share – copy and redistribute the material in any medium or format. Adapt – remix, transform, and build upon the material for any purpose, even commercially.