时效处理对冷轧C194铜合金性能的影响  

Effects of Aging Treatment on Properties of the Cold Rolling C194 Copper Alloy

作　　者：李明亮[1,2] 刘平[1] 刘新宽[3] 陈小红[3] 

机构地区：[1]上海理工大学机械工程学院 [2]盐城工业职业技术学院 [3]上海理工大学材料科学与工程学院

出　　处：《特种铸造及有色合金》2017年第4期457-460,共4页Special Casting & Nonferrous Alloys

基　　金：上海市教委创新项目(11YZ112);江苏省"青蓝工程"资助项目;江苏省前瞻性产学研项目(BY2016067-03);盐工院科研资助项目

摘　　要：研究了不同时效工艺对冷轧C194铜合金硬度、电导率、强度和伸长率等的影响,给出了C194铜合金较佳的时效工艺。结果表明,C194铜合金较佳的时效工艺为450℃×60min,其抗拉强度为582 MPa,伸长率为15.3%,硬度(HV)为170,电导率为41.47 MS/m,硬度、电导率、强度较连续挤压态与冷轧态的有明显提高,但伸长率下降。合金第二相小颗粒的数量较连续挤压态有明显增加,且弥散分布在基体内部,尺寸为10~20nm。较大的第二相颗粒数量较挤压板材的变化不大,第二相析出物及长大相为Fe3P化合物。The effects of aging treatment on hardness,electric conductivity,strength and elongation of cold rolling C194 copper alloy were investigated.The results reveal that with aging treatment at 450 ℃for 60 min,tensile strength,elongation,hardness and electric conductivity of the cold rolled C194 alloy reach 582 MPa,5.3%,170 HV and 41.47 MS/m,respectively,and the hardness,conductivity and strength are improved significantly compared with those of ones at continuous extrusion and rolling state,however,the elongation is decreased.After aging treatment,the number of second small particles in the alloy is increased significantly compared with that in continuous extrusion sheet,and the precipitates with about 10-20nm are dispersed in the matrix.The size and number of the larger particles in the second phase are similar to that of the continuous extrusion sheet.The second phase precipitates and the growth phase are Fe3 P compounds.

关 键 词：C194铜合金 时效 析出相 冷轧 

分 类 号：TG146.11[一般工业技术—材料科学与工程] TG339[金属学及工艺—金属材料]