ZK60Aマグネシウム合金すえ込み鍛造材の集合組織

抄録

Texture measurements were made of upsetting forged disk to 50 and 70% reduction from semi-continuously cast rod and extruded rod of ZK60A alloy having weak [1120] and strong [1010] fiber texture parallel to rod axes respectively. The method of Harris for inverse pole figures of fiber textures was used. To verify if the method is appropriate for measurement of forging texture in magnesium, texture in extruded plate of AZ31 alloy was also measured. Initial textures changed during upsetting gradually to [0001] orientation parallel to upsetting direction, sharpness of these fiber texture being more shape at surface layer on disk than inner layer and at higher reduction. Textures in various location in disk from cast bar were uniform in comparison with that from extruded rod in which upsetting direction are parallel to extrusion direction.