涂覆制坯对不锈钢/低合金钢复合界面影响  

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

作　　者：宜亚丽[1] 孔耀颉 王宇韩 金贺荣[2,3] 赵丁选 YI Ya-li;KONG Yao-jie;WANG Yu-han;JIN He-rong;ZHAO Ding-xuan(School of Mechanical Engineering,Yanshan University,Qinhuangdao 066004,Hebei,China;Key Laboratory of Advanced Forging and Stamping Technology and Science of Ministry of National Education,Yanshan University,Qinhuangdao 066004,Hebei,China;Parallel Robot and Mechatronic System Laboratory of Hebei Province,Yanshan University,Qinhuangdao 066004,Hebei,China)

机构地区：[1]燕山大学机械工程学院,河北秦皇岛066004 [2]燕山大学先进锻压成型技术与科学教育部重点实验室,河北秦皇岛066004 [3]燕山大学河北省并联机器人与机电系统实验室,河北秦皇岛066004

出　　处：《钢铁》2021年第5期105-112,共8页Iron and Steel

基　　金：国家自然科学基金委员会-宝钢集团有限公司钢铁联合研究基金资助项目(U1660111);河北省自然科学基金-高端钢铁冶金联合基金资助项目(E2020203033)。

摘　　要：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、铬元素扩散,试样拉剪强度符合相关标准要求;涂覆法较嵌入法能明显提升阻隔铬元素扩散能力,获得更平直的结合界面,夹杂物和氧化物含量也能得到不同程度的改善,其中涂覆法氧元素质量分数(4.1%)显著低于嵌入法(11.1%),涂覆法拉剪强度(531MPa)高于嵌入法(503MPa)。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).

关 键 词：铁钴镍夹层 组坯方式 数值模拟 界面 复合板 

分 类 号：TG335.81[金属学及工艺—金属压力加工]