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EVALUATION OF SOME MECHANICAL PROPERTIES OF WELDED JOINTS FOR AUSTENTIC STAINLESS STEEL (316L) | ||
| DIYALA JOURNAL OF ENGINEERING SCIENCES | ||
| Article 2, Volume 3, Issue 1, 2010, Pages 1-16 PDF (0 K) | ||
| Author | ||
| Muna kudher abbas | ||
| Abstract | ||
| This research deals with the choice of the suitable filler metal or weld electrode to weld austenitic stainless steel (316L) by shielded metal arc welding (SMAW) and used four types of weld electrodes (E7018, E6013, E309l& E308l) under constant conditions such as plate thickness (6mm), welding current (120A), voltage (78V) ,reverse polarity(DCRP) .and diameter of (3.25) mm. Various inspections were carried out including visual inspection, x-ray radiography inspection, δ-ferrite phase and microstructure inspection. Mechanical tests were also conducted to include tensile testing , bending testing & microhardness testing. The results showed that the electrodes (E309L, E308L) are suited to weld stainless steel (316L). The results showed that the microhardness of the weld metal is higher than that heated affected zone (HAZ) and the base metal . The research results showed that (3.5%-4.5%) of δ-ferrite phase in weldment from (St.St 316L) by used electrodes (E309l, E308l) respectively. | ||
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