PSI - Issue 66

23 13

S. Skrobacz et al. / Procedia Structural Integrity 66 (2024) 11–25 S. Skrobacz¹², P. Krysi ń ski¹, S. Ma ł ys¹², T. Ł agoda², / Structural Integrity Procedia 00 (2025) 000–000

Base Material

Fusion Line

Weld

Figure 10. Microscopic Examination of Sample RV01

These tests did not reveal any non-conformities; no microcracks were detected in accordance with the EN ISO 10675-1 standard [18]. The next stage involved conducting destructive testing. A tensile test was performed according to EN ISO 4136 and EN ISO 6892-1, which are standard tests for determining the tensile strength of metallic materials. This type of test aims to determine the mechanical properties of the material, such as yield strength, elastic limit, elongation at break, and stress at break [19],[20]. The test was conducted on samples RV01.1 and RV01.2 with a gauge length of L0=80 mm. The results of this test are presented in the table below.

Table 9. Tensile Test Results for Samples RV01.1 / RV01.2 According to EN ISO 4136 and EN ISO 6892-1

Sample a (mm) b (mm)

RV01.1

RV01.2

Requirements

2.71 25.14

2,72 25.18

- -

S 0 (mm

2 )

68.13

68.49

-

F 0,2 (kN)

15.2

14.1

-

F m (kN)

18.1

17.3

-

σ 0,2 (N/ mm σᵤ (N/ mm 2 )

223

206

-

2 )

266

253

Min. 217 N/ mm 2

Bruchlage¹ (Fracture Location)

G

G

- -

Befund ² (Non-Conformity)

-

-

¹ G = Base Material (materia ł rodzimy); Ü = Transition Zone (strefa przej ś ciowa); S = Weld (spoina) ² e = Detected (wynik pozytywny); ne = Not Detected (wynik negatywny) Bend Test According to EN ISO 15614-1 and EN ISO 5173 the test was performed on four samples labeled RV01 G/1 to G/4. The sample dimensions were a thickness of a=3.0 mm and a width of b=30.0 mm [21], [22]. The diameter of the bending mandrel was d=20 mm, and the support span (d+3a) was 26 mm. The results of this test are presented in the table below.