TY  - JOUR
TI  - Experimental investigation of effect of welding parameters on surface roughness, micro-hardness and tensile strength of AISI 316L stainless steel welded joints using 308L filler material by TIG welding
SP  - 220
N1  - cited By 11
AV  - none
EP  - 236
SN  - 22387854
PB  - Elsevier Editora Ltda
KW  - Austenitic stainless steel; Flow of gases; Gas plants; Gas welding; Gases; Marine applications; Signal to noise ratio; Surface roughness
KW  -  'current; Aisi 316l; Arc current; Er308l; Experimental investigations; Filler materials; Gas flowrate; Tungsten inert gas; Tungsten inert gas welding; Welding parameters
KW  -  Tensile strength
ID  - scholars16204
N2  - Tungsten inert gas (TIG) welding is type of arc welding with area of applications in food industry, pharmaceutical industry, chemical plants, marine, aerospace, medical devices, and implants, etc. TIG welding process involve several parameters. Many parameters are controllable by the operator, and these parameters have a direct or indirect impact on the microstructure and mechanical properties of the joints. In the present study, three TIG welding parameters, arc current, voltage, and shielding gas flow rate, were changed up to three levels and their effects on surface roughness, hardness and tensile strength were investigated. Experiments were carried out on a 3 mm thick plate of austenitic stainless steel AISI 316L utilizing a TIG welding equipment and were designed according to Taguchi L9 orthogonal array (OA). ER308L was used as filler material. Results were analyzed using signal to noise S/N ratio and analysis of variance. It was observed that, for optimization of each response, arc current is the most influential factor. Minimum surface roughness was achieved at parametric combination of current 125 A, voltage 18 V and gas flow rate 12 L/min. Maximum hardness was achieved at parametric combination of current 125 A, voltage 20 V and gas flow rate 9 L/min. Maximum tensile strength was achieved at parametric combination of current 100 A, voltage 18 V and gas flow rate 6 L/min. © 2022 The Authors.
VL  - 21
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-85144033518&doi=10.1016%2fj.jmrt.2022.09.016&partnerID=40&md5=0d8050dad38d0d8a0fa079fff45a4209
A1  - Ghumman, K.Z.
A1  - Ali, S.
A1  - Din, E.U.
A1  - Mubashar, A.
A1  - Khan, N.B.
A1  - Ahmed, S.W.
JF  - Journal of Materials Research and Technology
Y1  - 2022///
ER  -