论文部分内容阅读
利用XRD、SEM、TEM等测试分析手段,研究了冷变形及时效处理对Cu Sn10Zn2Fe Co合金组织性能的影响。结果表明:在冷变形量40%,400℃时效处理4 h条件下,合金试样抗拉强度和伸长率分别为635 MPa和19.5%。透射电镜观察显示合金基体中弥散分布着尺寸在10~50 nm不等的纳米强化相,纳米颗粒与基体界面关系良好。当冷变形量为60%时,析出相在时效过程中发生粗化现象,合金试样力学性能下降。
The effects of cold deformation and aging treatment on the microstructure and properties of Cu Sn10Zn2Fe Co alloy were studied by means of XRD, SEM and TEM. The results show that under the conditions of 40% cold deformation and 400 ℃ aging treatment for 4 h, the tensile strength and elongation of the alloy specimens are 635 MPa and 19.5% respectively. Transmission electron microscopy showed that the nanostructured phases with different sizes ranging from 10 to 50 nm dispersedly distributed in the matrix of the alloy, and the interface between the nanoparticles and the matrix was good. When the amount of cold deformation is 60%, the precipitated phase coarsens during the aging process, and the mechanical properties of the alloy sample decrease.