炭素鋼の超音波振動下での内耗特性 : 第2報,磁場の影響

概要

論文の詳細を見る
Internal friction of carbon steels at about 17kHz is studied by using a sensitive electromagnetic amplitude sensor attached to an ultrasonic fatigue testing machine under the strain amplitude within 10^<-3>. The influence of applied magnetic field and the effect of heat treatment on the internal friction of carbon steels are as follows. The peak of the internal friction Q^<-1> found in carbon steels at the strain amplitude of about 3×10^<-4> is decreased with increasing applied magnetic field. The dependence of resonance frequency on the strain amplitude decreases with increasing of the applied magnetic field. The peak of Q^<-1> is explained by the magnetic property by the motion of the magnetic domain wall.
一般社団法人日本機械学会の論文
1991-04-25