Variation of the Physical Properties in the Weld Bead of the Submerged Arc Welding of Low-Carbon Alloy Steel
M. Aouragh1, B. Guerira1, L. Touam2, S. Derfouf3
1Mohamed Khider University of Biskra, BP 145RP, 07000 Biskra, Algeria
2Abbes Laghrour University, BP 1252 Road of Batna, 40004 Khenchela, Algeria
3University of Batna 2, 53 Route de Constantine. Fésdis, 05078 Batna, Algeria
Received: 12.12.2022; final version - 12.01.2023. Download: PDF
This paper presents an experimental study, which is performed on weld bead of the gas-tank element made of the low-alloy steel with the following chemical composition (% wt.): (C: 0.20, Si: 0.0079, Mn: 0.778, P: 0.0156, S: 0.058, Cr: 0.021, Al: 0.035, Cu: 0.012, Ni: 0.0075), and 3.3 mm of thick. This manufacturing process ends with a normalized annealing heat treatment at temperature of 920 ± 10°C. The purpose of this work is to study the effect of important parameter—the electrical voltage V. This welding is submerged arc welding under submerged arc-welding particle flux. The principle of the characterization taken into account consists in varying both the electrical voltage V, which is between 31 V and 36 V. As shown, this physical parameter directly influences the carbon content in the weld bead, the structural components and the mechanical properties (σ and HV0.3) of the steel under study.
Key words: gas tanks, submerged arc welding, electric voltage, low-alloy steel, ferrite, pearlite.
URL: https://mfint.imp.kiev.ua/en/abstract/v45/i03/0359.html
DOI: https://doi.org/10.15407/mfint.45.03.0359
PACS: 61.82.Bg, 64.70.kd, 81.05.Bx, 81.20.Vj, 81.40.Ef, 81.40.-z
Citation: M. Aouragh, B. Guerira, L. Touam, and S. Derfouf, Variation of the Physical Properties in the Weld Bead of the Submerged Arc Welding of Low-Carbon Alloy Steel, Metallofiz. Noveishie Tekhnol., 45, No. 3: 359—368 (2023)