Effect of reduction rates on interfacial microstructure morphologies of 316L/EH40 clad plate
JIN He-rong1,2, HAN Min-feng3, DUAN Chang-xin3
1. Key Laboratory of Advanced Forging and 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：In order to determine the reduction rate required for the preparation of 316L/EH40 clad plate, MSC.Marc software was applied to simulate the hot rolling process of 316L/EH40 under different reduction rates. Based on the contrastive analysis of the stress and strain fields at the interface of the deformation zone,the minimum reduction rate of effective bonding of stainless steel clad plates is 55%. Based on the analysis results,the Gleeble-3800 thermal simulation test machine was used to prepare composite samples with different reduction rates. The interface structure of the sample was observed and analyzed,and conclusions are as follow: when the deformation of the sample reaches 30%,the pores near the interface are basically closed,but some inclusions and micropores still exist;when the deformation is more than 50%,the micropores at the interface disappear completely and the number of inclusions decreases and the size decreases;the microstructure of low alloy steel side is ferrite and pearlite,the decarbonization layer is distributed near the bonding surface and with the increase of reduction rate,the thickness of decarbonizing layer decreases gradually;the side of stainless steel consists of austenite structure,the grain size of austenite is refined with the increase of reduction rate and the microhardness value increases with the increase of reduction rate.
金贺荣, 韩民峰, 段昌新. 压下率对316L/EH40复合板界面微观形貌的影响[J]. 钢铁, 2019, 54(12): 62-69.
JIN He-rong, HAN Min-feng, DUAN Chang-xin. Effect of reduction rates on interfacial microstructure morphologies of 316L/EH40 clad plate. Iron and Steel, 2019, 54(12): 62-69.
王国栋. 钢铁行业技术创新和发展方向[J]. 钢铁,2015, 50(9): 1.(WANG Guo-dong. Technology innovation and development direction of iron and steel industry[J]. Iron and Steel,2015,50(9):1.)
[2]
查春和,戴燕红,杨梅梅. 我国不锈钢复合板材的制造技术及应用[J]. 轧钢,2018,35(6):55.(ZHA Chun-he,DAI Yan-hong,YANG Mei-mei. Manufacturing technology and application of stainless steel clad plate in china[J]. Steel Rolling,2018,35(6):55.)
[3]
陈润泽. 真空对称轧制304+Q235B复合板生产实践[J]. 轧钢,2018,35(3):19.(CHEN Run-ze. Production practice for 304+Q235B clad plate by vacuum symmetrical rolling[J]. Steel Rolling,2018,35(3):19.)
[4]
王小勇,张海,刘建明,等. 热轧不锈钢复合板力学性能及工艺优化[J]. 中国冶金,2018,28(7):24.(WANG Xiao-yong,ZHANG Hai,LIU Jian-ming,et al. Mechanical properties and process optimization of hot rolled stainless clad steel plate[J]. China Metallurgy,2018,28(7):24.)
[5]
吴静怡,孙新军,李建,等. 热处理对Nb中间层热轧Q235-TA2复合板界面的影响[J]. 钢铁研究学报,2018,30(3):177.(WU Jing-yi,SUN Xin-jun,LI Jian,et al. Effect of heat treatments on interfaces of hot rolled Q235-TA2 clad plate with a niobium interlayer[J]. Journal of Iron and Steel Research,2018,30(3):177.)
[6]
JING Y A,QIN Y,ZANG X M,et al. The bonding properties and interfacial morphologies of clad plate prepared by multiple passes hot rolling in a protective atmosphere[J]. Journal of Materials Processing Technology,2014,214(8):1686.
[6]
JING Y A,QIN Y,ZANG X M,et al. The bonding properties and interfacial morphologies of clad plate prepared by multiple passes hot rolling in a protective atmosphere[J]. Journal of Materials Processing Technology,2014,214(8):1686.
[7]
LIU B X,WANG S,FANG W,et al. Meso and microscale clad interface characteristics of hot-rolled stainless steel clad plate[J]. Materials Characterization,2019,148:17.
[8]
李龙,张心金,祝志超,等. 真空热轧不锈钢复合板界面结合行为的研究[J]. 材料与冶金学报,2014,13(1):46.(LI Long,ZHANG Xin-jin, ZHU Zhi-chao,et al. Investigation on bonding of stainless steel clad plate by vacuum hot rolling[J]. Journal of Materials and Metallurgy,2014,13(1):46.)
[7]
LIU B X,WANG S,FANG W,et al. Meso and microscale clad interface characteristics of hot-rolled stainless steel clad plate[J]. Materials Characterization,2019,148:17.
[8]
李龙,张心金,祝志超,等. 真空热轧不锈钢复合板界面结合行为的研究[J]. 材料与冶金学报,2014,13(1):46.(LI Long,ZHANG Xin-jin, ZHU Zhi-chao,et al. Investigation on bonding of stainless steel clad plate by vacuum hot rolling[J]. Journal of Materials and Metallurgy,2014,13(1):46.)
[9]
WANG S,LIU B X,CHEN C X,et al. Microstructure,mechanical properties and interface bonding mechanism of hot-rolled stainless steel clad plates at different rolling reduction ratios[J]. Journal of Alloys and Compounds,2018,766:517.
[9]
WANG S,LIU B X,CHEN C X,et al. Microstructure,mechanical properties and interface bonding mechanism of hot-rolled stainless steel clad plates at different rolling reduction ratios[J]. Journal of Alloys and Compounds,2018,766:517.
[10]
HUANG Q X,YANG X R,MA L F,et al. Interface-correlated characteristics of stainless steel/carbon steel plate fabricated by AAWIV and hot rolling[J]. Journal of Iron and Steel Research,International,2014,21(10):931.
[11]
于涛,井玉安,张亚樵,等. 不锈钢复合板界面组织形貌[J]. 钢铁,2018,53(11):63.(YU Tao,JING Yu-an,ZHANG Ya-qiao,et al. Interfacial microstructure morphologies of stainless steel clad plate[J]. Iron and Steel,2018,53(11):63.)
[10]
HUANG Q X,YANG X R,MA L F,et al. Interface-correlated characteristics of stainless steel/carbon steel plate fabricated by AAWIV and hot rolling[J]. Journal of Iron and Steel Research,International,2014,21(10):931.
[12]
SUN C Y,LI L,FU M W,et al. Element diffusion model of bimetallic hot deformation in metallurgical bonding process[J]. Materials and Design,2016,94:433.
[13]
金贺荣,戴超,段昌新,等. 316L/EH40不锈钢复合板变形行为及初始层厚比设计[J]. 钢铁,2018,53(10):46.(JIN He-rong,DAI Chao,DUAN Chang-xin,et al. Deformation behavior and initial thickness ration design of 316L/EH40 stainless steel clad plate[J]. Iron and Steel,2018,53(10):46.)
[11]
于涛,井玉安,张亚樵,等. 不锈钢复合板界面组织形貌[J]. 钢铁,2018,53(11):63.(YU Tao,JING Yu-an,ZHANG Ya-qiao,et al. Interfacial microstructure morphologies of stainless steel clad plate[J]. Iron and Steel,2018,53(11):63.)
[14]
兰昆,程晓茹,邱俊,等. 压下率对耐磨钢/碳钢复合板界面结合性能的影响[J]. 热加工工艺,2017,46(20):121.(LAN Kun,CHENG Xiao-ru,QIU Jun,et al. Influence of reduction ratio on interfacial bonding properties of wear-resistant steel and carbon steel composite board[J]. Hot Working Technology,2017,46(20):121.
[15]
裴文娇,郭训忠,王文涛,等. 316L奥氏体不锈钢的高温流变行为[J]. 塑性工程学报,2014,21(3):104.(PEI Wen-jiao,GUO Xun-zhong,WANG Wen-tao,et al. Flow behaviors of 316L stainless steel at high temperature[J]. Journal of Plasticity Engineering,2014,21(3):104.)
[16]
Hanzaki A Z,Hodgson P D,Yue S. The influence of bainite on retained austenite characteristics in Si-Mn trip steels[J]. ISIJ International,1995,35(1):79.
[12]
SUN C Y,LI L,FU M W,et al. Element diffusion model of bimetallic hot deformation in metallurgical bonding process[J]. Materials and Design,2016,94:433.
[13]
金贺荣,戴超,段昌新,等. 316L/EH40不锈钢复合板变形行为及初始层厚比设计[J]. 钢铁,2018,53(10):46.(JIN He-rong,DAI Chao,DUAN Chang-xin,et al. Deformation behavior and initial thickness ration design of 316L/EH40 stainless steel clad plate[J]. Iron and Steel,2018,53(10):46.)
[14]
兰昆,程晓茹,邱俊,等. 压下率对耐磨钢/碳钢复合板界面结合性能的影响[J]. 热加工工艺,2017,46(20):121.(LAN Kun,CHENG Xiao-ru,QIU Jun,et al. Influence of reduction ratio on interfacial bonding properties of wear-resistant steel and carbon steel composite board[J]. Hot Working Technology,2017,46(20):121.
[15]
裴文娇,郭训忠,王文涛,等. 316L奥氏体不锈钢的高温流变行为[J]. 塑性工程学报,2014,21(3):104.(PEI Wen-jiao,GUO Xun-zhong,WANG Wen-tao,et al. Flow behaviors of 316L stainless steel at high temperature[J]. Journal of Plasticity Engineering,2014,21(3):104.)
[16]
Hanzaki A Z,Hodgson P D,Yue S. The influence of bainite on retained austenite characteristics in Si-Mn trip steels[J]. ISIJ International,1995,35(1):79.
2019, Vol. 54 
