固溶处理对高速轧制N06625镍基合金线材组织与性能的影响  

Effect of solution treatment on microstructure and properties of high speed rolled N06625 nickel based alloy wire rod

作　　者：谷宇[1] 王岩[1] 李吉东 曾莉[1] 韩东 Gu Yu;Wang Yan;Li Jidong;Zeng Li;Han Dong(State Key Laboratory of Advanced Stainless Steel,Taiyuan iron and Steel Group Co.,Ltd.,Taiyuan Shanxi 030003,China)

机构地区：[1]太原钢铁(集团)有限公司先进不锈钢材料国家重点实验室,山西太原030003

出　　处：《金属热处理》2024年第4期182-185,共4页Heat Treatment of Metals

基　　金：山西省关键核心技术和共性技术研发攻关专项(20201102017)。

摘　　要：采用高速线材轧制机组实现了大卷重N06625合金线材的生产,并对其不同温度(1000~1200℃)固溶后的组织与性能开展了研究。结果表明,N06625合金高速轧制线材的轧态晶粒尺寸极其细小,其合理的固溶处理制度为1180~1200℃×40 min;经1200℃固溶后,线材的强度和硬度较低,伸长率及断面收缩率优异,完全满足后续拔丝生产,且此时合金的组织调整完全,即发生完全静态再结晶,基体中只有少量小尺寸的Nb析出物,不会对后续冷拔变形产生不利影响。Production of N06625 alloy wire rod with large coil weight was realized by using the high⁃speed wire rolling mill,and the microstructure and properties after solution treatment at different temperatures(1000⁃1200℃)were studied.The results show that the grain size of the high speed rolled N06625 alloy wire rod is extremely small,and the reasonable solution treatment is at 1180⁃1200℃for 40 min.After solution treatment at 1200℃,the strength and hardness of the wire rod are low,and the elongation and reduction of area are excellent,which fully meet the subsequent drawing process.Besides,the microstructure of the wire rod is completely regulated,that is,static recrystallization is completed,where there are only a few small⁃sized Nb precipitates in the matrix,which will not affect the subsequent cold drawing deformation.

关 键 词：N06625合金 高速线材 显微组织 性能 

分 类 号：TG335.3[金属学及工艺—金属压力加工]