节镍型奥氏体不锈钢板面线鳞缺陷原因分析及改进  

Analysis on Causes Leading to Surface Linear Scale Defect of Nickel Saving Austenitic Stainless Steel Plate and Its Countermeasures

作　　者：梁健浑 徐向东 方健 方剑锋 黄卫文 罗杰 LIANG Jianhun;XU Xiangdong;FANG Jian;FANG Jianfeng;HUANG Weiwen;LUO Jie(Angang Lianzhong(Guangzhou)Stainless Steel Co.,Ltd.,Guangzhou 510760,Guangdong,China)

机构地区：[1]鞍钢联众(广州)不锈钢有限公司,广东广州510760

出　　处：《鞍钢技术》2022年第3期56-59,70,共5页Angang Technology

摘　　要：针对节镍型奥氏体不锈钢热轧板退火酸洗后表面发生线鳞缺陷问题,采用扫描电子显微镜对缺陷表面及横截面形貌和成分进行分析,并对导致线鳞缺陷的因素进行了探讨。通过优化合金成分(镍铜比)和粗轧终轧温度,线鳞缺陷得到明显改善。In order to solve the problem of the linear scale defect occurred on the surface of a nickel-saving austenitic stainless hot rolled steel plate after annealing and pickling,the microstructural appearances of the defect surface and its cross section and compositions in the defect were analyzed by scanning electron microscope,and the factors leading to the linear scale defect were discussed.By optimizing the alloy compositions(Ni-Cu ratio)and the finishing tem-perature of rough rolling,the linear scale defects reduced obviously.

关 键 词：节镍型奥氏体不锈钢 线鳞缺陷 镍铜比 粗轧终轧温度 

分 类 号：TG178[金属学及工艺—金属表面处理]