Issue 36

Sz. Szávai et alii, Frattura ed Integrità Strutturale, 36 (2016) 36-45; DOI: 10.3221/IGF-ESIS.36.04 38 Table 3. After cladding, the specimen was heat treated by heating it up to 670°C at a rate of 50°C/h for 16 hours and let it cool down together with the furnace. C Si Mn Cr Ni Mo Co Ti EA-395/9 0.08 0.35 1.2 13.5 23 4.5 0.08 - EA-400/10T 0.07 0.5 1.5 17 9.5 2 - - 316L 0.015 0.4 1.75 18.5 12 2.75 - - X6CrNiTi18-10 0.08 0.08 1.5 17 9 - - 0.4 Table 2 : Chemical composition of stainless steels (wt %). Welding Process Current (A) Voltage (V) Type of Current and Polarity Heat Input (kJ/mm) 1 st layer SMAW 120-130 24-25 DCEP ~0.61 2 nd layer SMAW 130-140 25-26 DCEP ~0.69 Table 3 : Welding parameters of the cladding. The welding was performed in two steps and without pre-heating or heat treatment. Originally the root weld was welded manually from the root side by GTAW method using Sv-04H19N11M3 Ø 1.6 mm electrodes in flat position. Figure 2 : Dimensions of the specimen. Figure 3 : Macrostructures of butt-welded joint.