摘要
利用拉伸试验机、维氏硬度计以及扫描电镜对电沉积法制备的DP钢/Ni-Fe复合板的拉伸力学性能、界面结合强度、硬度以及界面元素分布进行了研究。结果表明:复合板屈服强度为507MPa,抗拉强度为920MPa,断后伸长率为5.6%,其抗拉强度值近似于DP钢和Ni-Fe强度的线性叠加,其界面结合强度为416 MPa,呈现出良好的界面结合力。复合板界面两侧的硬度差异明显,在界面附近没有形成过渡区;复合板界面附近没有出现元素梯度变化,表明DP钢/Ni-Fe复合板在制备过程中没有发生元素扩散。
The mechanical properties, interface bonding strength, microhardness and interface element distribution of DP steel/Ni-Fe clad plate fabricated by electrodeposition were researched by using tensile testing machine, Vickers hardness tester and scanning electron microscopy （SEM）. The results show that the yield strength of the clad plate is 507 MPa, tensile strength is 920 MPa, and elongation （A50） is 5.6%. The tensile strength is approximate to linear superposition of the intensity of DP steel and Ni-Fe. The interface bonding strength of the clad plate is 416 MPa, showing a good interface binding force. The microhardness of the clad plate on either side of the interface has obvious differences. There is no transition zone near the interface. The elements gradient change of clad plate does not appear near the interface, which show that the element diffusion in DP/Ni-Fe interface does not occur.
出处
《热加工工艺》
CSCD
北大核心
2016年第10期135-138,共4页
Hot Working Technology
基金
内蒙古科技大学材料与冶金学院青年人才孵化器项目(2014CY012)
关键词
电沉积
NI-FE
复合板
力学性能
electrodeposition
Ni-Fe
clad plate
mechanical property
