Cu-10Cr-0.1Zr原位复合材料的制备工艺和性能研究

Preparation Process and Properties of Cu-10Cr-0.1Zr In-situ Composite

研究了冷拔配合中间热处理制得的Cu-10Cr-0.1Zr原位复合材料的组织和力学性能。结果表明,变形量为6.44的Cu-10Cr-0.1Zr原位复合材料的Cr树枝晶已变成纤维状组织,变形量越大,纤维越均匀细小。通过两次中间热处理和拉拔制备了Cr纤维增强Cu-10Cr-0.1Zr合金基原位复合材料,其抗拉强度可满足性能要求。

The microstructure and mechanical properties of Cu-10Cr-0.1Zr in-situ composite prepared with intermediate heat treatment and cold drawing were studied. The results show that when drawn strain is 6.44, Cr dendrites in Cu-10Cr-0.1Zr in-situ composite has become into the fiber structure and the larger of the deformation is, the finer of the fiber is. By intermediate heat treatment for two times and drawing, Cr fiber reinforced Cu-10Cr-0.1Zr matrix in-situ composite is prepared, whose tensile strength can meet the request.