塑性変形による音弾性効果の結晶粒方位分布関数による検討

概要

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It is well known that ultrasonic wave velocity is changed by elastic deformation (stress) and also by microstructural material property change, i.e. the rotation of crystals (so-called texture) due to plastic deformation ; this phenomenon is called acoustoelasticity or acoustoplasticity. The relation-ship between texture and ultrasonic wave velocities has been derived by Sayers using the crystallite orientation distribution function (CODF). In the present study, the Sayers's model is examined by comparison of the simulation results due to the CODF with the experimental data of the longitudinal and transverse wave velocities in both annealed and non-annealed aluminum alloy. Moreover, we study the rotation of crystals, i.e. texture, due to plastic deformation using the pole figure calculated by the CODF.
一般社団法人日本機械学会の論文
1995-10-25