Abstract:
Test of the mechanical properties of ODS ferritic steel is conducted by small punch test(SPT),which is one of candidate materials for supercritical water reactor(SCWR).Effect of the sample thickness,loading rate and test temperature on the load-displacement curves is analyzed,and the suitable test parameters for ODS ferritic steel is identified.The yield load and yield strength are fitted,which are tested respectively by SPT and conventional test.The result shows that SPT can test the strength of ODS ferritic steel.