Open AccessAssessment of St. St. 316L joints welded by laser beam and metal active gas MAG processes
Author(s) -
Amr Magdy,
Adel B. El-Shabasy,
Hala A. Hassan
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/973/1/012027
Subject(s) - welding , materials science , shielding gas , laser beam welding , indentation hardness , gas metal arc welding , microstructure , composite material , metallurgy , laser , ultimate tensile strength , beam (structure) , structural engineering , optics , physics , engineering
Study the welding of Stainless steel 316L sheet was carried out using two welding techniques, Laser beam and Metal Active Gas MIG. Strips of 1.5 mm thick were cut from the Stainless-steel sheet and then welded using nitrogen gas for shielding. Metallographic examination using optical microscopy and SEM was conducted to study the microstructure of the welded joints. The tensile stress for joints welded by Laser beam and MAG were ranged from 386 to 632 MPa and from 126.5 to 599 MPa respectively according to the parameters of each welding techniques. The average of microhardness values measured at successive distances for joints welded by Laser beam and MAG were 265 HV and 261 HV, respectively. The obtained results were analysed and discussed based on the recent research.