超级双相不锈钢材质CE3MN的试验研究  

Experiental Study of Super Duplex Stainless Steel CE3MN

作　　者：雷鹏飞[1] 卫心宏 周彤[1] 梁燕春 LEI Peng-fei;WEI Xin-Hong;ZHOU Tong;LIANG Yan-cun(Taiyuan Heavy Industry CO.,LTD.,Taiyuan Shanxi 030024,China)

机构地区：[1]太原重工股份有限公司,山西太原030024

出　　处：《铸造设备与工艺》2023年第2期19-21,44,共4页Foundry Equipment & Technology

基　　金：山西省重点研发计划项目(项目编号:2018030D12009)。

摘　　要：本文进行了超级双相不锈钢材质CE3MN不同工艺控制方案的对比试验研究。结果表明,该材质在化学成分内控基础上,采用高温落砂快速冷却到常温后,进行1120℃固溶处理的工艺控制方案,可得到比例接近的奥氏体+铁素体组织、较高的力学性能及良好的耐点腐蚀性能;通过高温力学性能试验,确定了材质不同温度的高温性能及显微组织特点,为预防材质在铸造过程中产生脆裂等缺陷工艺措施的制定提供了依据。This paper researches on comparative experiments on super duplex stainless steel CE3MN.Based on chemical composition control,process a control scheme which involves high-temperature sand casting,followed by rapid cooling to room temperature,and adopt at 1120℃solution treatment at 1120℃for this material.The process results a near-equiaxed proportion of austenite and ferrite microstructure,high mechanical properties,and excellent resistance to point corrosion.By conducting high-temperature mechanical performance tests,the high-temperature performance and microstructural characteristics of the material at different temperatures are determined.This provides a basis for the formulation of process measures to prevent defects such as brittle fracture during the casting process.

关 键 词：CE3MN 超级双相不锈钢 工艺控制试验方案 固溶热处理 高温力学性能 

分 类 号：TG142[一般工业技术—材料科学与工程]