室温形变对SAF2205双相不锈钢组织的影响  

Effect of Room-temperature Deformation on Microstructure of Duplex Stainless Steel SAF2205

作　　者：彭勇[1] 高磊[1] 张莹莹[1] 王东丽[1] 纪强 

机构地区：[1]辽宁石油化工大学机械工程学院,辽宁抚顺113001 [2]抚顺化工机械设备制造有限公司,辽宁抚顺113015

出　　处：《热加工工艺》2008年第20期54-56,共3页Hot Working Technology

摘　　要：参照U型管制造工艺,在室温和同一形变速率下,对SAF2205双相不锈钢钢管进行不同半径的弯曲。通过定量显微组织观察,发现弯制最小半径的U型管没有发生相变,同时找出了室温形变后使组织发生改变的最小弯曲半径;并对发生改变的组织进行1050℃固溶处理。结果表明:在受压一侧的组织恢复到原始供货状态,而在受拉一侧的组织比例没有恢复到形变以前的状态。According to the manufacturing technology of U-tube, the bending U-tube of duplex stainless steel SAF2205 with different radius was bent under the room temperature and the same deformation rate. The result of quantitative microstructure observation shows that there is no transformation in the minimum radius U-tube. Meanwhile, the minimum radius which make microstructure transform after deformation at room temperature is found. The transformed microstructure in the compressed section of the specimen can recover to the supplying condition after solution treatment at 1050 ℃, while the transformed microstructure in the tensile section can＇t recover to the previous proportion.

关 键 词：双相钢 室温形变 相变 固溶处理 

分 类 号：TG142.71[一般工业技术—材料科学与工程]