钢管2025，Vol.54Issue(6)：27-32,6.DOI:10.19938/j.steelpipe.1001-2311.2025.6.27.32
轧制温度对304SS/20CS复合管界面微观组织和结合性能的影响
Influence of Rolling Temperature on Interfacial Microstructure and Bonding Performance of 304SS/20CS Composite Tube
NIU Hui 1CHEN Peng 1FU Lun 1HE Dongping 1WANG Tao1
作者信息
- 1. College of Mechanical Engineering,Taiyuan University of Technology·Engineering Research Center of Advanced Metal Composite Forming Technology and Equipment Education Division,Taiyuan University of Technology,Taiyuan 030024,China
- 折叠
摘要
Abstract
To manufacture the large length-diameter ratio metallurgical composite tube,the 3-roll rotary rolling co-mposite technology is employed to get the 304 stainless steel/20 carbon steel(304SS/20CS)metallurgical composite tube successfully produced via the axially continuous forming process.The research indicates that the composite tube as made exhibits excellent interfacial bonding performance,and that any shearing fracture only occurs on the 20CS matrix side;the interfacial shear strength increases with the rise of the rolling temperature,and reaches a peak value of 327 MPa at 1 200℃;and the outward diffusion of alloying elements(e.g.,Cr and Ni)from 304SS into 20CS under high-temperature condition significantly enhances the solid solution strengthening effect.Meanwhile,the increase of the elongation leads to reduction of the decarburization layer thickness in 20CS.Thanks to joint effect of these factors,the said composite tube obtains the best interfacial bonding strength at 1 200℃.关键词
不锈钢/碳钢复合管/三辊斜轧/界面结合强度/轧制温度/元素扩散Key words
stainless steel/carbon steel composite tube/three-roll rotary rolling/interface bonding strength/roll-ing temperature/element diffusion引用本文复制引用
NIU Hui,CHEN Peng,FU Lun,HE Dongping,WANG Tao..轧制温度对304SS/20CS复合管界面微观组织和结合性能的影响[J].钢管,2025,54(6):27-32,6.
