冷轧C19400铜合金板带微观组织对残余应力的影响  

Effect of Microstructure on Residual Stress of C19400 Cold Rolled Copper Strip

作　　者：梁红玉[1] 韩垒 景洁 张文芹 原涛[1] Liang Hongyu;Han Lei;Jing Jie;Zhang Wenqin;Yuan Tao(Department of Mechanical Engineering,Taiyuan Institute of Technology,Taiyuan 030008,China;Taiyuan Jinxi Chunlei Copper Co.,Ltd.,Taiyuan 030008,China)

机构地区：[1]太原工业学院,山西太原030008 [2]太原晋西春雷铜业有限公司,山西太原030008

出　　处：《有色金属加工》2023年第5期51-56,共6页Nonferrous Metals Processing

基　　金：山西省科技厅科技重大专项项目(20181101002);山西省科技厅科技合作交流专项项目(202104041101028);山西省市场监督管理局专利转化专项计划项目(202202059)。

摘　　要：文章分析了冷轧C19400铜合金板带残余应力与材料内部微观组织之间的关系,通过SEM、EDS、EBSD、XRD等实验方法研究了基体及析出相的组织结构。结果表明,冷轧C19400铜合金板带中Fe(C)及Fe(C、P)固溶体析出相与基体结合力较大,随着C、P元素含量的增高,析出相与基体结合力减弱,极易从基体中脱落,使内部孔隙率增加,板带内部残余应力增加。通过控制C、P、Fe元素的含量,改善材料微观组织,可以降低板带内部残余应力,提高产品性能。The relationship between microstructure and residual stress of C19400 cold rolled copper strip is analyzed.The microstructure of matrix and precipitated phase is studied by SEM,EDS,EBSD and XRD.The results show that the precipitation of Fe(C)and Fe(C,P)solid solution in the cold rolled C19400 copper alloy strip has a large bonding force with the matrix.With the increase of the content of C and P elements,the precipitation and the matrix are weaked,and it is easy to fall off from the matrix,which increases the internal porosity and the residual stress in the strip.By controlling the content of C,P and Fe elements and improving the microstructure of the material,the residual stress inside the strip can be reduced and the performance of the product can be improved.

关 键 词：铜合金板带 冷轧 析出相 残余应力 

分 类 号：TG146.1[一般工业技术—材料科学与工程]