Regression Modelling of the Tensile Characteristics of 304l and 316l Stainless Steel Welded Joints

Document Type : Original Research Papers

Authors

Mechanical Engineering Dept., Faculty of Engineering at Shoubra, Benha Univ., Cairo, Egypt.

Abstract

In the present work, plates made from 316L and 304L stainless steels (SS) were joined using gas tungsten arc welding
(GTAW) to form similar and dissimilar welded joints. The welding process were conducted using ER308L filler rods and constant
welding parameters, typically, welding voltage, welding current, and welding speed. Regression modelling was used to corelate
the tensile characteristics of the 316L and 314L similar and dissimilar welded SS joints with or without elevated temperature. The
results revealed that regression models for ultimate tensile strength (UTS), yield strength (YS) and ductility (elongation, E%)
exhibited R-square values of 0.95, 0.91 and 0.74, respectively. The developed regression models can roughly predict the tensile
characteristics of similar and dissimilar 304L and 316L SS welded joints.

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Benha Journal of Applied Sciences
Volume 7, Issue 4
April 2022
Pages 119-123

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