冷变形织构沿纯铜线材径向分布的研究

为了探讨显微组织与形变织构的相关性,对纯铜线材运用精确的线材织构测定方法进行织构测定,采用取向分布函数法(ODF)分析了织构沿纯铜线材径向的分布.研究表明:单晶铜线材表面织构组分由〈100〉,〈112〉与〈110〉组成.由表及里〈100〉呈现增加趋势,并在中心层成为主要织构组分;〈112〉先增加后减少;〈110〉呈现减少趋势.多晶铜线材表面织构组分有〈100〉,〈111〉,〈112〉.由表及里〈100〉呈现先增加后减少;〈111〉呈现增加趋势,并在中心层与〈100〉成为主要织构组分;〈112〉先减少后增加.

On the Radial Distribution of Cold Deformation Textures of Pure Copper Wire

To explore the correlation between microstructure and deformation texture, the textures of copper wire were investigated in detail by XRD with a precision texture measurement suitable for wire samples provided. The radial distribution of deformation textures was analyzed by means of ODF. The results demonstrated that the surface textures of single-crystal copper wire consist of <100>, <112> and <110>, among which the <100> increases from surface to center of the wire and becomes the main texture in central layer, while <112> tends to increase then decrease from surface to center and <110> tends to decrease. However, the surface textures of poly-crystal copper wire consist of <100>, <112> and <111>, among which <100> tends to increase then decrease and <112> tends to decrease then increase from surface to center, while <111> tends to increase and both <100> and <111> become the main texture in central layer.