Performance Evaluation of 316L-Q345R Stainless Steel Clad Plate
JIN He-rong1,2, YANG Xu-kun3, YI Ya-li3
1. Key Laboratory of Advanced Forging & Stamping Technology and Science of Ministry of National Education, Yanshan University, Qinhuangdao 066004, Hebei, China;
2. Parallel Robot and Mechatronic System Laboratory of Hebei Province, Yanshan University, Qinhuangdao 066004, Hebei, China;
3. School of Mechanical Engineering, Yanshan University, Qinhuangdao 066004, Hebei, China
Abstract:Performance of 316L-Q345R stainless steel clad plate prepared by vacuum hot-rolling was evaluated from two aspects of the microstructure and micro-hardness. Microstructure topography and constituent of clad plate were investigated by scanning electron microscope and energy spectrum analysis, and changing rules of phase structure and constituent were also studied. Relationship between microstructure and hardness was studied by testing the hardness of interface between stainless steel and carbon steel through hardness tester. The results indicate that, after vacuum hot-rolling, the microstructure of Q345R is mainly composed of ferrite and pearlite. The microstructure of 316L is single austenite, and part of grain is twin state. The clad plate compounds well after vacuum hot rolling, and the interface between stainless steel and carbon steel is straight. Elements diffuse into both sides of the interface. Cr and Ni diffuse from stainless steel into the low alloy steel and form a rich Cr/Ni layer in the interface, and C migrates from the low alloy steel into stainless steel. The hardness of clad plate is larger at the composite interface. The hardness away from the interface is closed to that of Q345R steel in Q345R steel side, while from the interface to stainless steel, the hardness reduces and then increases until it reaches a stable value.
[1] 彭大暑,刘浪飞,朱旭霞.金属层状复合材料的研究状况与展望[J].材料导报,2000,14(4):23-24. PENG D S,LIU L F,ZHU X X.Review in research and development of clad metal sheets[J].Materials Review,2000,14(4):23-24.
[2] 杨牧南,左孝青,赵明伟,等.不锈钢复合板制备技术研究进展[J].热加工工艺,2012,41(20):93-96. YANG M N,ZUO X Q,ZHAO M W,et al.Research progress of manufacturing technology for stainless steel clad plate[J].Hot Working Technology,2012,41(20):93-96.
[3] JIN H R,GENG Y X,JIANG J S.Research on finishing rolling force model for hot rolling wide and heavy stainless steel clad sheets[J].Applied Mechanics and Materials,2014,488(1):213-216.
[4] 谢广明,骆宗安,王光磊,等.真空轧制不锈钢复合板的组织和性能[J].东北大学学报(自然科学版),2011,32(10):1398-1401. XIE G M,LUO Z A,WANG G L,et al.Microstructure and properties of stainless steel clad plate by vacuum rolling cladding[J].Journal of Northeastern University(Natural Science),2011,32(10):1398-1401.
[5] 李龙,张心金,刘会云,等.不锈钢复合板的生产技术及工业应用[J].轧钢,2013,30(3):43-47. LI L,ZHANG X J,LIU H Y,et al.Production technology and application of stainless steel clad plate[J].Steel Rolling,2013,30(3):43-47.
[6] JIANG H T,YAN X Q,LIU J X,et al.Effect of heat treatment on microstructure and mechanical property of Ti-steel explosive-rolling clad plate[J].Transactions of Nonferrous Metals Society of China,2014,24(3):697-704.
[7] 李晓波.不锈钢复合板的界面组织结构与性能[J].中北大学学报(自然科学版),2006,27(4):365-368. LI X B.Interfacial structure and performance of stainless clad plate[J].Journal of North University of China(Natural Science Edition),2006,27(4):365-368.
[8] HWANG W S,WU T I,SUNG W C.Effects of heat treatment on mechanical property and microstructure of aluminum/stainless steel bimetal plate[J].Journal of Engineering Materials and Technology,2012,134(1):1-6.
[9] 李龙,祝志超,张心金,等.利用控轧控冷技术开发热轧不锈钢复合板的实验研究[J].材料工程,2015,43(7):62-67. LI L,ZHU Z C,ZHANG X J,et al.Experimental study on hot rolled stainless steel clad plate produced by TMCP[J].Journal of Materials Engineering,2015,43(7):62-67.
[10] 王华,张云鹏,陈兴友.累计复合轧制TZM合金板的组织与性能[J].航空材料学报,2013,33(4):22-26. WANG H,ZHANG Y P,CHEN X Y.Microstructure and mechanical properties of TZM plate fabricated by accumulative roll bonding[J].Journal of Aeronautical Materials,2013,33(4):22-26.
[11] 李萌盛.铁素体不锈钢复合钢板界面组织与性能研究[J].压力容器,1997,14(6):19-22. LI M S.Microstructures and properties at the interface of ferrite stainless steel composite plate[J].Pressure Vessel Technology,1997,14(6):19-22.
[12] RAO N V,SARMA D S,NAGARJUNA S,et al.Influence of hot rolling and heat treatment on structure and properties of HSLA steel explosively clad with austenitic stainless steel[J].Materials Science and Technology,2009,25(11):1387-1396.
[13] 卫世杰,王海峰,陈婷.热处理对双相不锈钢复合板组织和性能的影响[J].新技术新工艺,2008,28(9):72-73. WEI S J,WANG H F,CHEN T.Influence of heat treatment on structure and properties of duplex stainless steel clad plate[J].New Technology & New Process,2008,28(9):72-73.
[14] KWANG S L,DONG H Y,HYE K K,et al.Effect of annealing on the interface microstructure and mechanical properties of a STS-Al-Mg 3-ply clad sheet[J].Materials Science and Engineering:A,2012,556(10):319-330.
[15] 李智凤,潘清林,严杰,等.退火制度对钎焊用热轧复合铝板组织与性能的影响[J].材料工程,2015,43(5):13-20. LI Z F,PAN Q L,YAN J,et al.Influence of annealing on microstructure and mechanical properties for hot-rolled aluminum composite brazing sheet[J].Journal of Materials Engineering,2015,43(5):13-20.
[16] 祖国胤,于九明,温景林.中间夹层对不锈钢复合板界面结合性能的影响[J].东北大学学报(自然科学版),2003,24(11):1053-1056. ZU G Y,YU J M,WEN J L.Effect of interlayer on interfacial bonding properties of stainless clad sheets[J].Journal of Northeastern University(Natural Science),2003,24(11):1053-1056.
[17] 李炎,祝要民,周旭峰,等.316L/16MnR热轧复合板界面组织结构的研究[J].金属学报,1995,31(12):537-542. LI Y,ZHU Y M,ZHOU X F,et al.Interfacial microstructures of hot rolled 316L/16MnR composite plate[J].Acta Metallurgica Sinica,1995,31(12):537-542.
[18] 李龙,张心金,刘会云.热轧不锈钢复合板界面氧化物夹杂的形成机制[J].钢铁研究学报,2013,25(1):43-47. LI L,ZHANG X J,LIU H Y.Formation mechanism of oxide inclusion on the interface of hot-rolled stainless steel clad plates[J].Journal of Iron and Steel Research,2013,25(1):43-47.