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中文摘要：
采用感应加热熔炼及通过热锻和线拉变形结合中间热处理制备了Cu-15％Cr原位复合材料，用SEM和TEM等技术对形变Cu—Cr原位复合材料的Cr纤维形成过程、立体形态进行了分析。结果表明，在变形过程中Cr树枝晶发生转动，平行于线轴方向排列；Cr纤维立体形态则为卷边的薄片状。测定了形变Cu—Cr原位复合材料的抗拉强度，分析表明，强度随变形量的增加而提高，与纤维相间距呈Hall—Patch关系。
英文摘要：
Cu-Cr in-situ composite was manufactured by inductive melting, casting, swaging, cold drawing and intermediate heat treatments. The evolution of filamentary microstructure and stereo shape were carried by SEM and TEM. During deformation the Cr dendrites were rotary movement and were aligned parallel to the wire axis. The Cr phase elongated into flanging ribbons. The tensile strength of deformation-processed Cu-Cr in-situ composite was measured, the results show the strength increased with increasing of the deformation. However, the strength follows a Hall-Patch type relationship with the Cr ribbon spacing.
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