| 焊接用双相不锈钢ER2209线材的生产实践 |
| |
| 引用本文： | 李 立,季灯平,马振宇,严道聪,胡梅青,王贞应,谢东西.焊接用双相不锈钢ER2209线材的生产实践[J].特殊钢,2023,44(2):37-42. |
| |
| 作者姓名： | 李 立 季灯平 马振宇 严道聪 胡梅青 王贞应 谢东西 |
| |
| 作者单位： | 1. 浙江青山钢铁有限公司，丽水 323900;
2. 瑞浦科技特种钢研究院，丽水 323900; |
| |
| 摘 要： | 通过对焊接用双相不锈钢ER2209线材生产实践过程中的冶炼、轧制、固溶及酸洗工艺的研究，结果表明：最佳的热加工温度为1000～1050℃,可有效避免σ相析出导致的轧制开裂；热处理温度为1050～1100℃,材料的强度较低，塑性较高，冷拉拔性能优异；采用(H2SO4+HF)溶液预处理及(HNO3+HF)混酸洗的工艺进行酸洗，线材表面质量优异，无酸洗晶间腐蚀。
|
| 关 键 词： | ER2209线材 双相不锈钢 σ相析出 固溶处理 酸洗 |
| 收稿时间： | 2022-09-08 |
Production Practice of Duplex Stainless Steel Wire Rods ER2209 for Welding Application |
| |
| Li Li,Ji Dengping,Ma Zhenyu,Yan Daocong,Hu Meiqing,Wang Zhenying,Xie Dongxi.Production Practice of Duplex Stainless Steel Wire Rods ER2209 for Welding Application[J].Special Steel,2023,44(2):37-42. |
| |
| Authors: | Li Li Ji Dengping Ma Zhenyu Yan Daocong Hu Meiqing Wang Zhenying Xie Dongxi |
| |
| Affiliation: | 1. Zhejiang Qingshan iron and Steel Co.,Ltd., Lishui 323900;
2. Ruipu Technology Special Steel Research Institute, Lishui 323900; |
| |
| Abstract: | The process of smelting,rolling,solution and pickling of duplex stainless steel ER2209 wire rods for butt welding was studied. The results show that the optimum hot working temperature was 1000- 1050 ℃,which can effectively avoid the rolling cracks caused by σ phase precipitation. The heat treatment temperature was 1050- 1100 ℃,the strength of the material was low, the plasticity was high,and the cold drawing performance is excellent. The process of(H2SO4+HF) solution pretreatment and (HNO3+HF)mixed pickling was used for pickling. The wire surface quality was excellent with- out pickling intercrystalline corrosion. |
| |
| Keywords: | ER2209 Wire Rods Duplex Stainless Steel σ Phase Precipitation Solution Treatment Pickling |
|
| 点击此处可从《特殊钢》浏览原始摘要信息 |
|
点击此处可从《特殊钢》下载全文 |
|
