涂覆制坯对不锈钢/低合金钢复合界面影响

为探究涂覆铁钴镍夹层法制备不锈钢/低碳钢复合板坯对复合板界面洁净度的影响,运用Procast仿真软件,利用正交试验法,确立夹层涂覆优选工艺参数.依据仿真结果制备带涂覆夹层复合板坯,通过与固态夹层嵌入法制得复合板坯对比,分析不同组坯方式对轧制成形后微观组织和力学性能的影响.试验结果表明,两类组坯方式的复合板夹层均可阻隔碳...

Effect of coating slab preparation on stainless steel/low alloy steel composite interface

To investigate the effect of coating Fe-Co-Ni interlayer method on the interfacial surface cleanliness of stainless steel/low carbon steel composite slabs,the orthogonal test method was used to establish the preferred process parameters for interlayer coating by Procast simulation software. Based on the simulation results,the composite slabs with coating interlayer were prepared and compared with the composite slabs made by solid interlayer embedding method to analyze the effect of different forming methods on the microsructure and mechanical properties after rolling and forming. It appears that the carbon and chromium diffusion preforms of the composite plate interlayers of both types are blocked,and the tensile and shear strength of the samples meets the requirements of the relevant standards. Compared with the embedding method,the ability to block the diffusion of chromium is significantly improved and a flatter bonding interface is obtained through the coating method. The content of inclusions and oxides were also reduced. The mass percent of oxygen of the coating method (4.1%) is significantly lower than that of the embedding method (11.1%),and the tensile strength of the coating method (531 MPa) is higher than that of the embedding method (503 MPa).