双相不锈钢2205线材拉拔断裂原因分析  

Analysis of the Causes of Drawing Fracture of 2205 Wire Rodof Duplex Stainless Steel

作　　者：李贵波 马正伟 LI Guibo;MA Zhengwei(Qingdao Puyou Precision Metal Products Co.,Ltd.,Qingdao 266555,China;Shandong Vocational College of Industry,Zibo 255000,China)

机构地区：[1]青岛浦友精密金属有限公司,山东青岛266555 [2]山东工业职业学院,山东淄博256414

出　　处：《山东冶金》2022年第5期57-59,共3页Shandong Metallurgy

摘　　要：规格Φ5.5 mm的双相不锈钢2205线材经过5道次拉拔至Φ2.5 mm,在拉拔过程中经常出现拉拔断裂。为查找断裂原因,采用宏观分析、光谱成分分析、金相分析、扫描电镜-能谱分析等方法对断裂样品进行了试验检测分析。结果表明,双相不锈钢2205线材基体中大量金属间化合物使材料塑性和韧性下降,在冷拔力的作用下产生断裂。The duplex stainless steel 2205 wire with specificationsΦ5.5 mm is drawn toΦ2.5 mm,drawing fracture often occurs during drawing.In order to find out the cause of fracture,macro analysis,spectral composition analysis,metallographic analysis,scanning electron microscopy energy spectrum analysis and other methods were used to test and analyze the fracture samples.The results show that there are a lot of intermetallic compounds in the matrix of 2205 duplex stainless steel wire rod,which reduce the plasticity and toughness of the material and cause fracture under the cold drawing force.

关 键 词：双相不锈钢 拉拔 断裂 金属间化合物 

分 类 号：TG142.1[一般工业技术—材料科学与工程]