Effect of heat input on microstructure and mechanical properties in gas metal arc welding of ferritic stainless steel

Effect of Heat Input on Microstructural and Mechanical Properties of AISI 304 Welded Joint Via MIG Welding

“…Effect of welding heat input on tensile strength and toughness of welded joints were investigated at different heat input and for each condition of heat input, three samples were conducted for tensile test and toughness test and the average value was recorded and presented in Figure 3. From Figure 3 it is very clear that at only 1.25 kJ/mm (low heat input) UTS and toughness increases while on increasing the heat input tensile strength (UTS) and toughness of weldment decreases [16]. It is only due to increasing the arc voltage and formation of δ-ferrite grains in the weld region.…”

Influence of Immersion Corrosion on Mechanical Properties of AISI 430/AISI 316L Dissimilar Welded Joints

“…Schaeffler diagram was used to predict microstructure of the fusion zone, and subsequently, to assess its susceptibility to corrosion damage. Chromium and Nickel equivalent was calculated using equations 1 and 2, employing the chemical composition of the electrode, base metals and assuming a 43 % dilution at the fusion zone, as suggested in similar works [33][34][35].…”

Effect of post weld heat treatment on metallurgical and mechanical properties of electron beam welded AISI 409 ferritic steel

“…The grain size of the WZ was found to be enlarged in comparison with the base metal and HAZ. The enlargement of the grains depends upon the period it remains heated, and the intensity of heat experienced [43]. The WZ mainly consisted of enlarged columnar grains perpendicular to the weld centerline.…”