CuFe合金薄带的制备与表征（英文）

发布时间：2019-06-21 14:17

【摘要】：首先采用高频感应熔炼法制备不同Fe含量的CuFe母合金,在对其组织与性能研究基础上采用单辊快速凝固甩带法制备了合金CuFe合金薄带,对不同成分的CuFe合金薄带相结构、组织进行分析表征。结果表明,Fe含量在2%~10%(质量分数)的范围内,随着Fe含量增加,合金的微观组织中富Fe枝晶数量增多且发生粗化。CuFe母合金的电导率随Fe含量增加逐渐降低,而硬度随之增大。Fe含量为8%的CuFe合金组织中Cu基体的显微硬度较高。CuFe合金薄带组织中晶粒非常细小,从辊面到自由面由于凝固速度的差异,合金薄带组织中晶粒逐渐变粗。对CuFe合金薄带进行XRD分析,未发现Fe的衍射峰,仅有Cu的衍射峰;同时发现随着Fe含量的增加,Cu的衍射峰逐渐降低并且变宽,并向低角度偏移,同时Cu(220)点阵常数增大,结合Cu-6.0%Fe的SEM分析,表明Fe固溶入Cu中,形成了CuFe固溶体。
[Abstract]:The CuFe master alloy with different Fe content was prepared by high-frequency induction melting, and the CuFe alloy thin strip with different Fe content was prepared on the basis of its structure and performance, and the structure and structure of the CuFe alloy thin strip with different components were analyzed and characterized. The results show that the Fe content is in the range of 2% ~ 10% (mass fraction), and with the increase of Fe content, the number of Fe-rich dendrites in the microstructure of the alloy increases and the coarsening occurs. The conductivity of the CuFe master alloy gradually decreases with the increase of the Fe content, and the hardness is increased accordingly. The micro-hardness of the Cu matrix in the CuFe alloy structure with the Fe content of 8% is higher. In the CuFe alloy ribbon, the grain size is very small, and the grain of the alloy ribbon gradually becomes thicker from the roll surface to the free surface due to the difference of the solidification speed. The XRD analysis of the CuFe alloy thin strip shows that the diffraction peak of Fe is not found, and only the diffraction peak of Cu is found; at the same time, with the increase of Fe content, the diffraction peak of Cu is gradually reduced and widened, and the Cu (220) lattice constant is increased, and the SEM analysis of Cu-6.0% Fe is combined. It is shown that Fe is dissolved in Cu, and CuFe solid solution is formed.
【作者单位】：西安理工大学;
【基金】：National Natural Science Foundation of China(51201132) Program of Shaanxi Natural Science Foundation(2012JQ6013) the Research of Science and Technology of the Education Department of the Shaanxi Provincial(14JS065) Shaanxi Provincial Project of the Special Foundation of Key Disciplines
【分类号】：TG146.11

【相似文献】