DP800双相钢热轧板表面氧化皮红锈的产生原因  

Causes of red rust of oxide scale on DP800 dual phase steel hot rolled plate surface

作　　者：李远鹏 马二清 崔磊[2] 江社明 张启富 LI Yuanpeng;MA Erqing;CUI Lei;JIANG Sheming;ZHANG Qifu(National Engineering Lab of Advanced Coating Technology for Metallic Materials,China Iron&.Steel Research InstituteGroup,Beijing100081,China;Ma'anshan Iron&.Steel Co.,Ltd.,Ma'anshan 243003,China)

机构地区：[1]中国钢研科技集团有限公司先进金属材料涂镀国家工程实验室,北京100081 [2]马鞍山钢铁股份有限公司,马鞍山243003

出　　处：《理化检验（物理分册）》2022年第11期61-64,68,共5页Physical Testing and Chemical Analysis(Part A:Physical Testing)

摘　　要：对DP800双相钢热轧板表面氧化皮的红锈缺陷的产生原因进行了分析。结果表明:热轧板表面红锈区域氧化皮的厚度是正常区域的2倍,该区域氧化皮中的Mn, Cr, Mo元素含量较低,不能形成致密的氧化皮,因此红锈区域氧化皮疏松;酸洗及冷轧后,红锈区域和正常区域表面的化学成分几乎一致,红锈区域的粗糙度较正常区域偏高,且红锈区域的氧化皮能够被完全酸洗掉。The causes of red rust defects of oxide scale on the surface of DP800 dual-phase steel hot rolled plate were analyzed. The results show that the thickness of the oxide scale in the red rust area on hot rolled plate surface was twice as thick as that of the normal area. The content of Mn, Cr and Mo in the oxide scale of red rust area was low, and the dense oxide scale could not be formed, so the oxide scale in red rust area was loose. After pickling and cold rolling, the chemical compositions of the suface of the red rust area and the normal area were almost the same, the roughness of the red rust area was higher than that of the normal area, and the oxide scale in the red rust area could be completely pickling.

关 键 词：双相钢 热轧板 氧化皮 红锈 酸洗 

分 类 号：TB31[一般工业技术—材料科学与工程] TG115.2[金属学及工艺—物理冶金]