Issue 49

M. J. Adinoyi et alii, Frattura ed Integrità Strutturale, 49 (2019) 487-506; DOI: 10.3221/IGF-ESIS.49.46

buckling. The extensometer used has a gauge length of 11 mm. Following testing, fractographic analysis was conducted on fractured specimens of selected strain amplitudes under JOEL JSM6610 Scanning Electron Microscope (SEM).

Element

Al Cu Fe

Li

Mg

Mn Si

Ti

Zn Zr

wt%

94 2.7 0.02 1.8 0.29 0.3 0.02 0.03 0.7 0.1

Table 1 : Material chemical composition.

Figure 1 : Illustration of locations of sample for metallography analysis.

(a)

(b)

Figure 2 : (a) Solid specimen for monotonic tensile test, (b) Solid specimen for axial fatigue test.

489