Inhomogeneous Texture Distributions Imaged by ACOM and X-Ray Pole Figure Measurement

Abstract

The development of inhomogeneous texture in a deep-drawn aluminum cup and a friction welded aluminum roller has been investigated by ACOM (Automated Crystal Orientation Mapping) and compared with results from x-ray pole figure measurement and ODF analysis with triclinic sample symmetry. After deep drawing the diffracted x-ray intensities are drastically reduced to only about 15% of the initial one. and the spread range of the orientation components are expanded. The sharp cube component of initial texture was retained after deep drawing, but the weak β fiber has disappeared and some other components are formed. As another example texture changes by frictional bonding, the seam between two parts of a roller has been studied. The rollers were made of Al6061 and are used in textile industry. The texture was investigated by means of ACOM because the deformed zone during the welding is much narrower.