OS0118 羽原型ハーバー硬度計の改良と減衰硬さに関する研究(OS1-4 材料特性評価,OS-1 実験力学と計測技術2)

概要

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The Herbert hardness tester is a typical pendulum type one. The hardness is measured using swinging angle of the pendulum on the specimen. However, the Herbert hardness tester is not common in hardness measurement in the present. We have manufactured Habara-type Herbert pendulum hardness tester and improved measurement system of the swing angle. In our previous study, the swing angle was measured using one laser displacement meter, but this measurement system could not measure it exactly. We used two laser displacement meters to measure the swing angle exactly. The hardnesses were measured by Habara-type Herbert pendulum hardness tester with modified measurement system and Vickers hardness tester. Damping hardness obtained by modified measurement system was found correlate linearly with Vickers hardness. Therefore, the damping hardness is reasonable value. The modified measurement system provides accurate measurement using the Habara-type Herbert pendulum hardness tester.
一般社団法人日本機械学会の論文
2011-07-16