Effect of Interlayers on Microstructure and Properties of 2205/Q235B Duplex Stainless Steel Clad Plate

作     者：Fengqiang Xiao Dongpo Wang Wenbin Hu Lei Cui Zhiming Gao Lanju Zhou Fengqiang Xiao;Dongpo Wang;Wenbin Hu;Lei Cui;Zhiming Gao;Lanju Zhou

作者机构：School of Materials Science and EngineeringTianjin UniversityTianjin 300350China Tianjin Key Laboratory of Advanced Joining TechnologyTianjin UniversityTianjin 300350China Shandong High-tech Investment CorporationJinan 250101China Shandong Iron&Steel Group Co.LTDJinan 250101China 

出 版 物：《Acta Metallurgica Sinica(English Letters)》 (金属学报（英文版）)

年 卷 期：2020年第33卷第5期

页      面：679-692页

核心收录：

学科分类：080503[工学-材料加工工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0802[工学-机械工程] 080201[工学-机械制造及其自动化] 

基　　金：financially supported by the Shandong Taishan Industry Leading Talents Project(SF1503302301) 

主　　题：2205/Q235B clad steel plate Fe interlayer Ni interlayer Nb interlayer Decarburization area Shear strength 

摘      要：In this research,2205/Q235 B clad plates were prepared by a vacuum hot rolling composite *** effects of adding Fe,Ni,and Nb interlayers on the bonding interface structures and the shear strengths of the clad steel plates were *** results showed that 2205 duplex stainless steel and the three interlayers produced a large amount of plastic deformation and low-angle boundaries,and the main structures were the recrystallized and deformed *** were many recrystallized grains in the microstructure of the Q235 B low-carbon steel due to the low deformation in the rolling *** Fe interlayer had better wettability with the two kinds of steel,but the lower strength led to the reduction of shear strength by about14 MPa compared with the original clad steel *** C element in the Q235 B low-carbon steel easily diffused into the Fe interlayer,and the clad steel plate attained a poor corrosion resistance because a large decarburization area was *** Nb interlayer reacted with the Mo element in the 2205 duplex stainless steel to form an Nb-Mo binary alloy,which generated long-banded *** decarburization area was also produced because the Nb reacted with the C element in the Q235 B to form hard and brittle *** a result,the shear strength was significantly reduced by about 282 MPa,and the corrosion resistance of the bonding surface was *** Ni interlayer did not react with the alloy elements in both sides,and therefore effectively prevented element diffusion and improved the corrosion resistance of the bonding *** to the low strength of the Ni interlayer and the increased number of bonding surfaces of the clad steel plates,the shear strength was reduced to some extent(about 40 MPa),but it still met the engineering application standards.