卷取温度对510L钢氧化皮结构的影响  

Effect of Coiling Temperature on Microstructure of 510L Steel Scale

作　　者：吝章国[1] 贾耿伟[1] 李守华[1] 曹光明[2] 

机构地区：[1]河北钢铁集团邯钢公司,河北邯郸056015 [2]东北大学轧制技术及连轧自动化国家重点实验室．辽宁沈阳110004

出　　处：《热加工工艺》2011年第24期78-81,共4页Hot Working Technology

摘　　要：利用模拟法研究了热轧卷曲温度对汽车大梁钢510L氧化皮结构的影响。结果表明,精轧后的510L钢表面氧化皮主要由FeO层和少量Fe3O4层组成;在不同的卷取温度下,FeO层发生不同程度的共析反应,最终形成不同结构的表面氧化皮;在450～550℃时,FeO层共析反应发生的速度最快,形成的最终氧化皮中Fe3O4含量也最多。The effects of coiling temperature on the microstructure of 510L steel scale were studied by simulation method. The results show that the surface scale 510L steel is mainly made up by FeO and Fe304 layer after finish rolling. The eutectoid reaction occurs in FeO layer at different coiling temperature, which can result in the final scale with different structure. The speed of eutectoid reaction in FeO layer at 450 ~C ~550 ~C is fastest, and then the content of Fe304 in surface scale can reach most degree in the eutectoid reaction.

关 键 词：510L钢 氧化皮结构 共析反应 

分 类 号：TG441.8[金属学及工艺—焊接]