3.3. Influence of interrupted cooling on cracking
The deuterium absorption amounts and the expansions in thickness of samples with different interrupted temperatures are shown in Table 1 (fourth row). It can be seen that when the interrupted temperature is 900 C, i.e. when the sample is cooled directly from 900 C, the deuterium absorption amount is 3.15%. When the interrupted temperatures decrease to 800 C, 700 C and 600 C, the deuterium absorption amounts increase to 3.58%, 3.87% and 4.00%.