S32205双相不锈钢管坯在制管过程中,由于穿孔变形激烈,对热塑性要求较高。采用Gleeble-1500热模拟试验机,对S32205双相不锈钢管坯试样进行拉伸试验,得到不同温度下的断面收缩率和抗拉强度随温度变化的规律。通过扫描电镜对断口处的形貌和组织进行分析,为热穿孔提供了依据。 S32205 duplex stainless steel tube in the process of pipe making, due to intense deformation perforation, thermoplastic requirements higher. Using Gleeble-1500 thermal simulation test machine, the tensile test of S32205 duplex stainless steel tube blank samples was carried out, and the regularity of the change of area shrinkage and tensile strength with temperature was obtained under different temperatures. The morphology and microstructure of the fracture surface were analyzed by SEM, which provided the basis for thermal perforation.