Effect of Welding Current on Joining of AISI 316 L Steel by TIG Welding Process

Yıl 2025, Cilt: 3 Sayı: 1, 1 - 13, 28.03.2025

Vedat Şimşek , Polat Topuz

https://doi.org/10.61150/ijonfest.2025030101

Öz

AISI 316L is one of the most widely used austenitic stainless-steel types today. Since it has less carbon content than AISI 316, annealing is not required even in thick sections, especially after welding processes. In this study, 6 pieces AISI 316L plate in 220x70x10 mm were combined by TIG welding method with different welding currents, keeping the conditions the same, and their differences were tried to be revealed experimentally. Micro and macro structural properties, changes in hardness, fracture energies, three-point bending tests and tensile tests of the samples of which welding processes were completed were carried out according to current standards and the results were compared with each other. As a result of the experiments and analyses, it has been determined that the change in the welding current value affects the mechanical properties of the welded joint when joining AISI 316 L austenitic stainless steel with TIG welding method and the most appropriate value for this study is 150 A.

Anahtar Kelimeler

AISI 316 L, TIG, welding current, experimental, microstructure, mechanical properties

Kaynakça

• [1] Türkyilmazoğlu A., 2006. Welding of Duplex, Martensitic and Ferritic Stainless Steels, Master's Thesis, Sakarya University Institute of Science and Technology.
• [2] Cobb H. M., 2010. The History of Stainless Steel. USA, ASM International. p.17.
• [3] Odabas C., 2004. Paslanmaz Çelikler, Temel Özellikleri, Kullanım Alanları, Kaynak Yöntemleri, Askaynak-İstanbul.
• [4] Tülbentçi K., Kaluç E., 1994. Geçmişten Günümüze Paslanmaz Çelikler, META, Vol. 20, 47-52.
• [5] Shek C H., Lai J K L., Lo K H., (2012). Stainless Steels: An Introduction and Their Recent Developments. Belgium: Bentham eBooks
• [6] Papp J F., (1991). Chromium, Nickel, and Other Alloying Elements in U.S.- Produced Stainless and Heat-Resisting Steel, Breau of Mines Information Circular. USA: (n.p.)
• [7] Llewellyn D T., Hudd R C., (1998). Steels: Metallurgy and Applications, Third Edition, Reed Educational and Professional Publishing Ltd., London, England
• [8] Şimşek V., 2022. Determination of Optimal Welding Parameters in Joining AISI 316 Stainless Steel with TIG Welding Method, Master's Thesis, Istanbul Gedik University Graduate Education Institute.
• [9] Kaluç E., 1990, Ostenitik Krom-Nikelli Paslanmaz Çeliklerin Kaynağı, Gedik Holding Kaynak Dünyası, vol.2, pp.15-21.
• [10] Rabensteiner, G., Folkhard, E., Perteneder, E., Schabereiter, H., Tösch, J. (2012). Welding Metallurgy of Stainless Steels. Austria: Springer Vienna.
• [11] Muncaster, P. W., 1991. A Practical Guide to TIG (GTA) Welding. UK, Elsevier Science.
• [12] Abuç S., 2006. The Effect of Shielding Gas on Mechanical Properties in the Welding of Austenitic Stainless Steels by Gas Welding Method, Master's Thesis, Sakarya University Institute of Science and Technology.
• [13] Radhakrishnan, V. M., 2005. Welding Technology and Design. India: New Age International (P) Limited, Pub.
• [14] https://kaynakakademi.com/tig-argon-kaynak-yontemi/ access 13.09.2023
• [15] EN ISO 4499-1:2020. Hardmetals – Metallographic determination of microstructure-Part 1: Photomicrographs and description
• [16] EN ISO 17639: 2022. Destructive tests on welds in metallic materials - Macroscopic and microscopic examination of welds
• [17] EN ISO 9015-1:2011. Destructive tests on welds in metallic materials - Hardness testing - Part 1: Hardness test on arc welded joints
• [18] EN ISO 4136:2022. Destructive tests on welds in metallic materials - Transverse tensile test
• [19] EN ISO 5173:2023. Destructive tests on welds in metallic materials - Bend tests
• [20] EN ISO 9016:2022. Destructive tests on welds in metallic materials - Impact tests - Test specimen location, notch orientation and examination
• [21] Moslemi N., Redzuan N.H., Ahmad N., Hor T.N. (2015). Effect of current on characteristic for 316 stainless steel welded joint including microstructure and mechanical properties. Procedia CIRP, 26, 560-564.
• [22] Fuxiang L., Yibo L., Haoyu K., Qi S., KeXin K., Qingjie S., (2022). Improved microstructure and performance of thick-walled 316L stainless steel joint by NG-GTAW with auxiliary magnetic field, Journal of Materials Research and Technology, 21, 3038-3050, https://doi.org/10.1016/j.jmrt.2022.10.109.
• [23] Yürük A., (2023) The effects of TIG welding parameters on the microstructure and mechanical properties of AISI 316L stainless steel, Pamukkale University Journal of Engineering Sciences, 29(1), 76-85, doi: 10.5505/pajes.2022.43825.
• [24] Moi S., Pal P. K., Bandyopadhyay A., (2019). Design Optimization of TIG Welding Process for AISI 316L Stainless Steel. International Journal of Recent Technology and Engineering (IJRTE). 8(2), 5348-5354, DOI:10.35940/ijrte.B2709.078219