PSI - Issue 59

402 T. Maydanchuk et al. / Procedia Structural Integrity 59 (2024) 399–406 4 T. Maydanchuk, Y. Lukianchenko, S. Kozulin, V. Porohonko, S. Marynenko/ Structural Integrity Procedia 00 (2019) 000 – 000

Tensile strength testing ( σ v , MPa), elongation ( ε , %), and bend testing (°) were performed on a universal testing machine according to ASTM-E8 standards. Mechanical properties were evaluated by conducting three replicate tests. X-ray inspection was carried out using the RAP-150/300 equipment (Aktubrentgen, Kazakhstan) with a focal spot size of 3x3 mm. 3. Experimental results The experiments resulted in welded joints, and the macrographs of the cross-sections are presented in Fig. 3.

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Fig. 3. Macrographs of the welded joints obtained using: (a) CuNiFeSiTi; (b) CuZn37; (c) CuSn4Zn3;(d) CuSi3Mn1.

As can be seen from Fig. 4, pores were only detected in the welded joints when using CuZn37 filler wire (b). Therefore, it was decided to conduct X-ray radiography of the welds (Fig. 4).

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Fig. 4. X-ray radiographs of the brass welds obtained using: (a) CuNiFeSiTi; (b) CuZn37; (c) CuSn4Zn3; (d) CuSi3Mn1.