Corrosion Behavior Evaluation of TIG Welding Joint of Low Carbon Steel

Hussein A. Hussein; Khairia S. Hassan; Ahmad M. Salman

doi:10.24237/djes.2020.13304

Authors

Hussein A. Hussein
70082@uotechnology.edu.iq
Middle Technical University (MTU), Institute of Technology, Baghdad- Iraq
Khairia S. Hassan Department of Production Engineering and Metallurgy, University of Technology, Baghdad - Iraq
Ahmad M. Salman University of Technology, Baghdad – Iraq

Keywords:

Shot peening, TIG Welding, Filler metal, Corrosion behavior, Low carbon steel

Abstract

The current research studies the corrosion behavior of Low Carbon Steel 1020 AISI welded joint by means of TIG welding method using mutable DC current and constant voltage. Before the welding process, shot peening by steel balls for certain welded joints is applied to the sheet metal, and then welding under the same welding conditions without shot peening. A number of corrosion inspection samples have been prepared with the measurements of (15 * 15 * 3 mm), according to ASTM (G71-31). Microstructure, residual stress has been tested and the corrosion test has been conducted electrochemically in 3.5 per cent NaCl solution for all samples. Corrosion rate was computed by means of the Tafel equation. The results show a rise in corrosion rate in some welded joints compared with other welded joints and base metal due to the variation in heat input from the input current for each weld passes. Shot peening process contributed to lower corrosion rate compared to welded joints without shot peening, due to the residual compression stresses produced by shot peening process. The best results obtained when number of welds passes and welding current are decreased to get suitable heat input.

Downloads

Download data is not yet available.

References

Talabi, S.I.A, Owolabi, O.B.B "Effect of Welding Variables on Mechanical Properties of Low Carbon Steel Welded Joint" Advances In Production Engineering & Management Issn 1854‐6250, Volume 9 | Number 4 | December 2014 | Pp 181–186.

Wan Shaiful Hasrizam Wan Muda1"Effect of Welding Heat Input on Microstructure And Mechanical Properties At Coarse Grain Heat Affected Zone of Abs Grade A Steel" Arpn Journal of Engineering And Applied Sciences Vol. 10, No 20, November, 2015pp9487-9495.

Muna K. A., Khairia S. H. And Hani A A " Influence of The Butt Joint Design of Tig Welding on Corrosion Resistance of Low Carbon Steel "American Journal of Scientific And Industrial Research 2012, Science Huβ, Http://Www.Scihub.Org/Ajsir Issn: 2153-649x

Raffi M.d “Comparative Studies on Microstructure, Mechanical and Corrosion Behavior of Dmr 249a Steel And Its Welds” Iop Materials Science And Engineering 330 (2018) Pp1-7

Vaszilcsin C.G,"Inhibiting Corrosion Process of Carbon Steel In Sodium Chloride Aqueous Solution By Capsaicin Extract" Chem. Bull. "Politehnica" Univ. (Timisoara) Volume 61(75), 1, 2016 Pp 23

Hani A. A., Khairia S. H.& Walid K. A." Influence of Corrosion Rate on The Double Butt-Welding Shapes Design for Low Carbon Steel" Eng.&Tech. Journal Vol.29, No6 2011pp 109-1106.

Manuel M.o, Jenifer A "Marine Atmospheric Corrosion of Carbon Steels" Revista De Metalurgia 51(2) April–June 2015, Pp1-18

Nashwa A S, “Effect of Shot Peening Time on Mechanical Properties of Aluminum Alloy Aa2024 –T4”, The Iraqi Journal For Mechanical And Material Engineering, Vol.14, No1, 2014pp46-54.

Nurul S, Mohd N "Influence of Heat Input on Carbon Steel Microstructure "Arpn Journal of Engineering and Applied Sciences Vol. 12, No. 8, April 2017pp2686-2697.

Gharibshahiyan, A. H. Raouf, N. P and Rahimian M.” The Effect of Microstructure on Hardness And Toughness of Low Carbon Welded Steel Using Inert Gas Welding". Materials and Design. Vol. 32no. (4):2011pp2042-2048.

Rana A.M” Mechanical Properties and Corrosion Behavior of Low Carbon Steel Weld Ments” Al-Khwarizmi Engineering Journal, Vol. 9, No. 1, (2013) P.P. 83-93

Oladele.O.T ” Comparative Investigation of The Mechanical Properties and Corrosion Behavior of Dissimilar Metal Weld Fusion Zone, Heat Affected Zones And Base Metals” International Journal of Engineering Tome Xvi [2018] | Fascicule 1 [February]Pp187-191

Talabi, S.I.A, Owolabi, O.B.B, Adebisi, J.A.A, Yahaya, T.A "Effect of Welding Variables on Mechanical Properties of Low Carbon Steel Welded Joint" Advances In Production Engineering & Management Issn 1854‐6250 Volume 9 | Number 4 | December 2014 | P P 181–186

Zakaria B, Chemseddine D, And Thierry B. “Effect of Welding on Microstructure and Mechanical Properties of An Industrial Low Carbon Steel.” Engineering 2010, 2, Pp502-506. [15]-C.G.

Vaszilcsin, M.L. Dan,"Inhibiting Corrosion Process of Carbon Steel In Sodium Chloride Aqueous Solution By Capsaicin Extract "Chemical Bulletin of “Politehnica” University of Timisoara, Romania Series of Chemistry and Environmental Engineering Volume 61(75), 1, 2016pp 23-3.

Annual Book of Astmstandards, Standard Practice For Calculation of Corrosion Rates and Related Information, G102-89, Vol. 03.02, 2004.

Ajuan H, Mohsen H “ Designing of Ck45 Carbon Steel And Aisi 304 Stainless Steel Dissimilar Welds “ Materials Research. 2014; 17(1): 106-1