Abstract
The small punch creep (SPC) test is possible to predict residual creep life at a high accuracy. In this report, the relationship between small punch creep (SPC) test results and uniaxial creep test results in STPA24(2.25Cr-1Mo Steel) and Inconel 738(6Cr-8.5Co-Ni)were studied. The obtained relationship between SPC load and equivalent uniaxial creep stress for both materials formed individual linear equations. As far as STPA24, the relationship for as- received material and aged material were same, so a life assessment is possible for aged components. The difference of the relationship between STPA24 and IN738 was ascribed to the deformation in SPC.
