S32205双相不锈钢管坯的热塑性  

Thermoplasticity of S32205 duplex stainless steel bar

作　　者：高亦斌 吴明华 刘战英 

机构地区：[1]永兴特种不锈钢股份有限公司,湖州313005 [2]华北理工大学冶金与能源学院,唐山063009

出　　处：《塑性工程学报》2016年第1期126-130,共5页Journal of Plasticity Engineering

摘　　要：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。Due to severe plastic deformation of piercing,high plasticity at high temperatures is needed for fabricating the duplex stainless steel S32205 tube blank.By using a Gleeble-1500 thermomechanical simulator,the tensile tests were performed on the sample tube billets of S32205 duplex stainless steel,and the percentage reduction of area and the and the tensile strength at different temperatures were obtained.Also,the morphology and microstructure of fracture surface were analyzed by using the scanning electron microscope.The results provide a basis for the hot piercing of S32205 duplex stainless steel.

关 键 词：双相不锈钢 S32205 热塑性 管坯 

分 类 号：TG337.5[金属学及工艺—金属压力加工]