Abstract
Some destructive techniques are required to evaluate the degradation of components under elevated temperatures. However, conventional uniaxial creep specimens were sometimes too large to collect them from local area of target components. Miniature Creep (MC) test has been recognized as a semi-destructive technique to examine the damage condition of components. They employ small size specimens that can reduce the conventional uniaxial creep specimen in similarity. In this study, MC tests using round bar and thin plate specimens were performed in Argon gas to measure creep properties, and compared with uniaxial creep test results employing 2.25Cr-1Mo steel. It was shown that MC rupture lives were a similar trend those of uniaxial creep, and the MC test is able to substitute for conventional uniaxial creep test.
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