チタンおよびその焼結体の疲れ破壊挙動(第1報) : 表面変化

概要

論文の詳細を見る
A study has been carried out on the fatigue behaviour of sintered titanium powder compact compared with the case of wrought titanium specimen. In this report, especially, the surface deformation mode was observed by Nomarsky technique by using a polarization microscope and by scanning electron microscope.<BR>The slip band formation spreading all over the specimen surface was observed during fatigue test of wrought titanium specimen in the high cycle fatigue region, and the extrusion was also noticed in some regions of slip band. Besides the above mentioned slip band, twin formation was also recognized to have a great effect on the fatigue behaviour in the low cycle fatigue region. In the case of sintered specimen, however, only a few slip bands were observed in the limited area, during the fatigue test, and any other surface deformations were not noticed in almost all part of the specimen surface.
社団法人粉体粉末冶金協会の論文