PSI - Issue 75

KADIRI Mounir et al. / Procedia Structural Integrity 75 (2025) 633–641 KADIRI Mounir/ Structural Integrity Procedia (2025)

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Figure 6 : hydraulic tension compression machine for the self-heating tests

3. Results of self-heating tests 3.1. Self-heating response of studied configurations

Self- heating was conducted on different samples in the configuration “base material”. The curves of temperature rise were obtained by removing the mean temperature of the machine’s jaws to the temperature of the sample. The temperature rise is only shown for loading block where 0 is stabilized at the end of the loading (Figure 7a). Similarly, self-heating tests were carried out on hydrogen-charged samples. The corresponding temperature rise curves, shown in (Figure 7b ), indicate that the thermal signal was slightly lower than that of the “base material” configuration. To separate the effect of hydrogen from that of the coating, it was necessary to investigate the configuration of uncharged coated material. For this purpose, self-heating tests were performed on coated uncharged samples. The resulting temperature rises are presented in (Figure 7c).