| Summary: | 碩士 === 義守大學 === 機械與自動化工程學系碩士班 === 97 === There were many kinds of measurement of Young''s modulus of superalloys.In the theme, there would use three different ways to measure the Young''s Modulus﹒The tensile test、ultrasonic test、laser ultrasonic test. Much of the effort is focused on experimental setup and measurement﹐as well as on signal waveform processing﹒For the experimental part﹐after the tensile test﹐the data rate of curve could calculate the Young''s modulus﹒In the ultrasonic test﹐I used the Pulse Echo Method to calculate the Young''s modulus﹒In the laser ultrasonic test﹐I used the Nd:YAG laser to measure the Young''s modulus﹒Finally, calculated the young''s modulus by the formula and compared it with the tensile test﹒The ultrasonic test could obtain the same result with the tensile test﹒Although the ultrasonic test the error was slightly big, approximately 1.1%, The proof selected the different gauging way, its anticipated young''s modulus error is not big.
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