Issue 57

R. Andreotti et alii, Frattura ed Integrità Strutturale, 57 (2021) 223-245; DOI: 10.3221/IGF-ESIS.57.17

Figure 15: Path (blue line) all along which the micro hardness measures were taken. Undeformed zone is marked orange.

Figure 16: Micro-hardness profile for 90° impacts. Two peaks well over 300HV are located symmetrically with respect to the relative minimum at 270HV, corresponding to the epicentre of the impact. These features give the HV distribution an M-shaped profile.

Figure 17: Micro-hardness profile for 85° impacts. Two peaks at around 300HV are located symmetrically with respect to the relative minimum at 230HV, corresponding to the epicentre of the impact. These features give the HV distribution an M-shaped profile.

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