摘要
新型高性能结构对钛合金、钢过渡连接接头用钛-钢爆炸复合板复合界面的结合性能和致密性的要求越来越高。本文对过渡连接用钛-钢复合板结合界面附近的微观组织、显微硬度及变形特征等分析的结果表明,TA2-Q345界面漩涡区金属的流动状态不同导致形成不同的漩涡形态,金属流动不畅时,漩涡区易于形成缩松类空洞等缺陷,并夹杂有Fe Ti、Fe2Ti等脆性化合物和富余的铁元素,以及大量氧化物;距离结合界面越近,塑性变形越剧烈,波峰处的变形要大于波谷,钢侧变形程度大于钛侧;钢侧漩涡区的硬度最高,波峰处次之,波谷处最小。
The demands for new high performance structures to the binding interface properties and compactness of titanium-steel explosive clading plates used as transition joints of titanium alloy and steel structures are higher and higher. The analysis on the microstructure, microhardness and deformation characteristics near the interface of titanium steel explosive clading plate shows that, the different flow states of the metals in the eddies of TA2-Q345 interfaces lead to different eddy forms. When metal flow is not smooth, shrinkage holes and other defects are easily formed in the eddies, including Fe Ti,Fe2 Ti brittle compounds and surplus of iron, and a large number of oxides. The closer the distance to the interface is, the fiercer the plastic deformation is. The deformations at the crests are larger than that at the valleys, and the deformations at the steel sides are greater than that at the titanium sides. The hardness of the eddy regions in steel side is the highest, and that at the crest regions are lower, and that at the valleys are minimum.
出处
《热加工工艺》
CSCD
北大核心
2016年第5期59-62,共4页
Hot Working Technology
关键词
钛-钢爆炸复合板
过渡连接接头
结合界面
titanium steel explosive clading plate
transition joint
bonding interface
