倪雷,刘丽艳,郭亚洲,凌华,毕文珍,韦习成

• 1:上海汽车集团股份有限公司乘用车公司
• 2:上海大学材料科学与工程学院
• 3:宝山钢铁股份有限公司中央研究院汽车用钢开发与应用技术国家重点实验室(宝钢)

摘要(Abstract)：

利用扫描电镜和能谱仪研究了不同保温时间对镀锌B1500HS钢镀层组织演变规律的影响,采用X射线衍射仪验证了基体元素扩散对镀层组织的影响。结果表明:镀层厚度随保温时间的延长逐渐增加,但当保温时间延长到7 min时,镀层厚度增幅变小。Г相与α-Fe(Zn)含量随保温时间的增加而发生变化,保温时间为3 min时,镀层表面由Г相、α-Fe(Zn)相和ZnO组成,保温时间为7 min时,Г相消失。Mn元素由基体扩散至镀层表面,在不同的保温时间下分别形成了MnO_2和ZnMn_2O_4。Al元素在保温时间为7 min时聚集于混合氧化层与α-Fe(Zn)相之间,形成Al_2O_3。

关键词(KeyWords)： B1500HS钢;热成形;纯锌镀层;加热时间;组织演变

Abstract:

Keywords:

基金项目(Foundation): 上海汽车工业科技发展基金(1827)

作者(Author): 倪雷,刘丽艳,郭亚洲,凌华,毕文珍,韦习成

DOI: 10.13289/j.issn.1009-6264.2020-0156

参考文献(References)：

• [1] Sonsoles D,Uwe T,Peter M.CO2 emissions from new passenger cars in the EU:Car manufacturers′ performance in 2015[R].Berlin,The International Council on Clean Transportation,2015,16:1-13.
• [2] Zhang Y,Zhu P,Chen G,et al.Lightweight design of automotive front side rail based on robust optimisation[J].Thin-walled Structures,2007,45(7):670-676.
• [3] Kondratiuk J,Kuhn P,Labrenz E,et al.Zinc coatings for hot sheet metal forming:comparison of phase evolution and microstructure during heat treatment[J].Surface and Coatings Technology,2011,205(17/18):4141-4153.
• [4] Hu P,Ying L,Li Y,et al.Effect of oxide scale on temperature-dependent interfacial heat transfer in hot stamping process[J].Journal of Materials Processing Technology,2013,213(9):1475-1483.
• [5] 张杰,江社明,张启富.热成形钢镀层研究进展[J].金属热处理,2015,40(3):169-172.ZHANG Jie,JIANG She-ming,ZHANG Qi-fu.Current status of coatings for hot formed steel[J].Heat Treatment of Metals,2015,40(3):169-172.
• [6] Jarvinen H,Honkanen M,Patnamsetty M,et al.Press hardening of zinc-coated boron steels:Role of steel composition in the development of phase structures within coating and interface regions[J].Surface and Coatings Technology,2018,352:378-391.
• [7] Kang J,Kim D,Kim D H,et al.Fe-Zn reaction and its influence on microcracks during hot tensile deformation of galvanized 22MnB5 steel[J].Surface and Coatings Technology,2019,357:1069-1075.
• [8] Lee C W,Fan D W,et al.Galvanized coating evolution during hot stamping[C]//In:8th International Conference on Zinc and Zinc Alloy Coated Steel Sheet,Genova,Italy,2011:327-334.
• [9] Janik V,Beentjes P,Norman D,et al.Role of heating conditions on microcrack formation in zinc coated 22MnB5[C]//Materials Science and Technology Conference and Exhibition 2014,MS and T 2014,Association for Iron and Steel Technology,AISTECH,2014:299-306.
• [10] 崔青玲,李建平,李世宇,等.22MnB5钢锌基镀层加热过程中组织演变及裂纹形成[J].钢铁研究学报,2019,31(2):227-232.CUI Qing-ling,LI Jian-ping,LI Shi-yu,et al.Microstructure evolution and crack formation of Zn based coating on 22MnB5 hot formed steel[J].Journal of Iron and Steel Research,2019,31(2):227-232.
• [11] Wang K,Zhu B,Wang Z J,et al.Successive phase and morphology evolution of galvannealed coating in hot stamping and diffusion modeling of α-Fe(Zn)/steel system considering the effect of Zn concentration[J].Surface and Coatings Technology,2019,380:1-13.
• [12] 苏旭平,李智,尹付成,等.热浸镀中硅反应性研究[J].金属学报,2008,44(6):718-722.SU Xu-ping,LI Zhi,YIN Fu-cheng,et al.A study of the silicon reactivity in galvanizing[J].Acta Metallurgica Sinica,2008,44(6):718-722.
• [13] Fan D W,Cooman B C D.State-of-the-knowledge on coating systems for hot stamped parts[J].Steel Research International,2012,83(5):412-433.
• [14] 张杰,江社明,张启富,等.加热工艺对热成形钢表面纯锌镀层组织和表面氧化物的影响[J].腐蚀与防护,2014,35(5):450-453.ZHANG Jie,JIANG She-ming,ZHANG Qi-fu,et al.Effects of heat-treatment process on microstructure and surface oxide of GI coating on hot stamped steel[J].Corrosion and Protection,2014,35(5):450-453.
• [15] 于武刚,邱肖盼,张杰,等.预合金化时间对热成形钢锌基镀层组织和成分的影响[J].钢铁,2017,52(7):84-88.YU Wu-gang,QIU Xiao-pan,ZHANG Jie,et al.Influence of pre-alloying time on zinc-based coatings of hot forming steel in structure and component[J].Iron and Steel,2017,52(7):84-88.

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