高铁含量铜铁合金强化机理的研究进展  

Research progress on strengthening mechanism of copper-iron alloys with high iron concentration

作　　者：张鹏博[1] 俞志焘 王亚平[1] 周亮[2] 张兆瑞 南福东 ZHANG Peng-bo;YU Zhi-tao;WANG Ya-ping;ZHOU Liang;ZHANG Zhao-rui;NAN Fu-dong(School of Physics,Xi’an Jiaotong University,Xi’an 710049,China;School of Materials Science and Engineering,Chang’an University,Xi’an 710064,China;Shannxi Coal Chemical Industry Technology Research Instituted,Xi’an 710100,China)

机构地区：[1]西安交通大学物理学院,西安710049 [2]长安大学材料科学与工程学院,西安710064 [3]陕西煤业化工技术研究院有限公司,西安710100

出　　处：《中国有色金属学报》2023年第8期2496-2520,共25页The Chinese Journal of Nonferrous Metals

基　　金：陕西省自然科学基金资助项目(2021JLM-41)。

摘　　要：因铜铁合金具有优异的物理性能和较低的成本,表现出巨大的潜力和应用前景,特别是其电磁屏蔽特性在5G通信、高端电子器件领域有着重要的应用价值。一般来说,铜铁合金经过冷变形加工、固溶处理以及时效处理后能够获得较高的强度,因此关于铜铁合金强化机理的研究自合金问世以来从未停止。本文首先简要分析了铁含量对铜铁合金强度的影响,然后,从铜铁合金的强化方式出发对其强化机理进行了综述,在此基础上,对铜铁合金的强化机理进行了总结并提出了展望。其中,高铁含量铜铁合金的主要强化方式为纤维强化,并且在冷变形过程中会发生马氏体相变。此外,在后续热处理过程中可能析出纳米孪晶铜,甚至形成铜铁超有序结构。值得注意的是,以上方式都使铜铁合金的强度得到进一步的提高。Copper-iron alloys present great potential and application prospects because of their excellent physical properties and low cost.Especially,their electromagnetic shielding properties possess important application value in the fields of 5G communications and advanced electronic devices.Generally,the higher strength can be obtained for the copper-iron alloys,which are processed by cold deformation,solution treatment and aging treatment.Therefore,the research on the strengthening mechanism of copper-iron alloys has never been stopped since the alloys were invented.In this paper,the effect of iron content on the strength of copper-iron alloys was briefly analyzed,and then the strengthening mechanisms of copper-iron alloys were reviewed from the aspect of strengthening methods.On this basis,the strengthening mechanisms of copper-iron alloys were summarized,and the prospects were introduced.Among them,the main strengthening method of copper-iron alloys with high iron content is fiber strengthening,and the martensitic transformation occurs in the process of cold deformation.In addition,the precipitation of nano-twinned copper and the formation of copper-iron super-ordered structure are possible in the following heat treatment.It is worth noting that the aforementioned methods are beneficial for the enhancement of the strength for the copper-iron alloys.

关 键 词：铜铁合金 铁含量 强化机理 高强度 

分 类 号：TB331[一般工业技术—材料科学与工程] TG146.1[金属学及工艺—金属材料]