00Cr25Ni7M04N超级双相不锈钢热加工性能的研究  

A Study on Hot Workability of Super Duplex Stainless Steel 00Cr25Ni7Mo4N

作　　者：王晓峰[1] 陈伟庆[1] 宋红梅[2] 

机构地区：[1]北京科技大学冶金与生态工程学院,北京100083 [2]宝钢研究院不锈钢技术中心,上海201900

出　　处：《特殊钢》2008年第5期29-31,共3页Special Steel

摘　　要：通过Gleeble热模拟机对真空感应炉熔炼的00Cr25Ni7Mo4N锻材进行高温拉伸和单道次及连续4道次压缩试验。结果表明,在900～1 250℃的范围内随温度提高和在950～1 100℃时随道次递增,00Cr25Ni7Mo4N钢的最大变形抗力逐渐下降;在1 050～1 250℃时,00Cr25Ni7Mo4N钢的变形抗力较低,断面收缩率高于60%,具有较好的热塑性;当应变速率为10/s且温度高于1 000℃,及应变速率为50/s且温度高于1 100℃时,钢的热加工性较好。Test of tensile properties and compression with single pass and continuous 4 pass at elevated temperature for forged bar of steel 00Cr25Ni7Mo4N melted by vacuum induction furnace has been carried out by Gleeble thermal simulator. Results showed that at 900 - 1 250 ℃, with increasing temperature and at 950 - 1 100 ℃ with progresive increasing pass, the maximum deformation resistance of steel 00Cr25Ni7Mo4N gradually decreased; at 1 050 - 1 250 ℃ the deformation resistance of steel 00Cr25NiTMo4N was lower and the reduction of area was more than 60% with better hot plasticity; the steel had better hot workability as strain rate 10/s at ≥ 1 000 ℃ and as strain rate 50/s at ≥ 1 100 ℃.

关 键 词：双相不锈00Cr25Ni7Mo4N 应力-应变 热加工性 

分 类 号：TG142.71[一般工业技术—材料科学与工程]