| 摘要 |
PROBLEM TO BE SOLVED: To provide a method and a device for creep test in which creep characteristics value, e.g. activation energy or stress index, of a material can be measured easily in a short time using a small test piece. SOLUTION: A sample 1 is fixed in an atmosphere equipped with a temperature controller 3 and pressed by a harder presser 5 having a sharp forward end 6 applied with a controlled load. Creep of the sample 1 is then measured by measuring the pushing speed of the presser 5 against the sample 1. The sample 1 is mounted on the sample mounting part of a supporting pipe secured to the wall face of a test chamber 4 and pressed by the sharp terminal of the presser 5 fixed to a movable push rod 10 and extending along the supporting pipe. The load is controlled by a load controller 13, variation in the distance of the presser 5 being pushed into the sample 1 is measured by means of a displacement measuring unit 12, and signals of the sample temperature, the variation of push-in distance and the pressing load are inputted to an operating unit 19 where creep is operated.
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