终轧温度对透平电机用含锡铁素体不锈钢力学性能及成形性的影响  

Effect of Finish Rolling Temperature on Mechanical Properties and Formability of Sn-Containing Ferritic Stainless Steel for Turbine Generators

作　　者：花国祥 刘秀婷 高峰 HUA Guoxiang;LIU Xiuting;GAO Feng(School of Automation,Wuxi University,Wuxi 214105,China;School of Sciences,Wuxi University,Wuxi 214105,China;School of Material Science and Engineering,Northeastern University,Shenyang 110819,China)

机构地区：[1]无锡学院自动化学院,江苏无锡214105 [2]无锡学院理学院,江苏无锡214105 [3]东北大学材料科学与工程学院,辽宁沈阳110819

出　　处：《热加工工艺》2022年第23期27-32,共6页Hot Working Technology

基　　金：江苏省高等学校自然科学研究项目(20KJB460004)。

摘　　要：为了探索终轧温度对透平电机用含锡铁素体不锈钢力学性能及成形性的影响,选择终轧温度分别为730、800、870、940℃的冷轧退火板为对象,利用电子拉伸机、粗糙度测量仪和杯突试验机研究了含锡铁素体不锈钢在不同终轧温度下的力学性能及成形性。结果表明:随着终轧温度的降低,冷轧退火板的屈服强度和抗拉强度逐渐增大,终轧温度730℃时达到最大值;伸长率先升高后降低,终轧温度800℃时达到最大值;平均起皱高度和最大起皱高度先降低后升高,终轧温度800℃时达到最小值;杯突值先增大后降低,终轧温度800℃时达到最大值。In order to explore the effect of finish rolling temperature on the mechanical properties and formability of tin-containing ferritic stainless steel for turbine motors, cold-rolled and annealed sheets with finish rolling temperatures of 730,800, 870 and 940 ℃ were selected as the objects. Then the mechanical properties and formability of Sn-containing ferritic stainless steel were studied by means of the electronic tensile machine, roughness shape instrument and cupping testing machine. The results show that with the decrease of finish rolling temperature, the yield strength and tensile strength of the cold-rolled annealing plate increase gradually, and reach the maximum at 730℃;the elongation increases first and then decrease, and reach the maximum at 800℃;the average and maximum wrinkle heights decrease first and then increases, and reaches the minimum at 800℃;the cup protrusion value increases first and then decreases, and reaches the maximum at 800℃.

关 键 词：透平电机 含锡铁素体不锈钢 终轧温度 力学性能 成形性 

分 类 号：TG335.5[金属学及工艺—金属压力加工]