氧化铈对低合金钢焊条力学性能的影响  

Influence of cerium oxide on mechanical properties of low alloy steel electrode

作　　者：郭永环[1] 范希营[1] 王广丰[1] 

机构地区：[1]徐州师范大学机电工程学院,江苏徐州221116

出　　处：《焊接学报》2009年第10期41-44,共4页Transactions of The China Welding Institution

基　　金：徐州市科技计划资助项目(XJ08072);徐州师范大学校科研基金项目(08XLR15)

摘　　要：在低合金钢焊条药皮过渡微量的稀土氧化铈,通过用MATLAB函数辅助计算、曲线拟合,得出氧化铈与熔敷金属力学性能的定量关系公式.结果表明,定量关系公式误差较小,抗拉强度误差由原来的44 MPa降为1 MPa,下屈服强度误差由原来的100MPa降为2 MPa.把稀土元素换算成碳当量,引入低合金钢焊条配方设计公式中,减少了试验次数,降低了焊条设计成本.Micro-amount cerium oxide was transferred into the electrode coating of low alloy steel in the experiment,and the formula of mechanical property quantitative relationship between cerium oxide and deposited metal was obtained by calculating and curve fitting in MATLAB function.The results show that the tensile strength error decreases from 44 MPa calculated with empirical formula to 1 MPa with the quantitative formula,and the lower yield strength error from 100 MPa to 2 MPa.The rare-earth quantity can be converted to carbon equivalent and introduced into the quantitative formula as a parameter,which makes the test times and the cost of electrode design reduce.

关 键 词：氧化铈 低合金钢焊条 力学性能 定量关系 

分 类 号：TG422.1[金属学及工艺—焊接]