抄録
In order to find the correlation between the torsion fatigue strength and the process of fiber texture changes in drawn aluminium wires, fatigue strength measurements were carried out for the wires of various drawing ratios, and the orientation changes during fatigue were investigated by means of X-ray pole figure determination.
It was found that the orientation {112}⟨111⟩ developed by drawing up to a reduction of approximately 72% and the orientation near {110}⟨111⟩ developed by drawing up to approximately 82% were the stable orientations for the torsion fatigue.
The ⟨111⟩ single fiber texture developed by drawing up to approximately 93% was accompanied with the stable orientations {110}⟨111⟩ and {112}⟨111⟩.
It was shown that all the orientations were accompanied with the stable end orientation {110}⟨111⟩ except for the orientations {112}⟨111⟩ and {001}⟨100⟩.
From the torsion fatigue properties, it was concluded that the specimen drawn by a reduction in area up to approximately 82% had the highest endurance limit.
Therefore, the wire, in which the ⟨100⟩ fiber component decreases and the stable end orientation {110}⟨111⟩ is developed during fatigue, is expected to be a material with good torsion fatigue resistivity.
