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川崎製鉄技報 KAWASAKI STEEL GIHO

Vo3. (1971) No.4

内部摩擦測定装置

Internal Friction Measuring Apparatus

川村 紘一(Kouichi Kawamura) 今中 拓一(Takuichi Imanaka) 要旨 : 内部摩擦の測定は,金属材料の性質を理解するうえで,重要な研究手段である。ここでは, 川崎製鉄(株)計量工場において開発した縦振動型測定装置とねじり振動型測定装置につい て述べている。縦振動型測定装置は,完全自動式であり,変形中の内部摩擦を測定すると いうような,動的試験にも,安定した測定が可能である。ねじり振動型測定装置は,広い 温度領域での試験や,動的試験が可能である。 Synopsis :

The measurement of internal frictions affords one of the most important means of studying and understanding the true nature of any metals. This article will describe the outline of two types of internal friction measurement apparatuses developed by Kawasaki Steel Corporation, the one being the piezoelectric longitudinal vibration type and the other the torsion pendulum type. The longitudinal vibration type adopts a perfectly synchronized self-oscillation system, capable of conducting stable and reliable measurement in dynamic tests for measuring the rapid changes in the internal friction during plastic deformation. The torsion pendulum type is suited for tests with a wider temperature range and also for dynamic tests.

(c)JFE Steel Corporation, 2003

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