科技创新与应用2025，Vol.15Issue(16)：29-31,38,4.DOI:10.19981/j.CN23-1581/G3.2025.16.007
大厚度X65MS抗酸管线钢的研制开发
吴海虹1
作者信息
- 1. 江苏沙钢钢铁有限公司,江苏 张家港 215625
- 折叠
摘要
Abstract
Through the ultra-low carbon,Nb-Ti composite composition design and reasonable TMCP process,this paper explored the role of microalloying elements in precipitation strengthening and grain refinement during rolling and cooling processes,and a uniform fine grain bainite,quasi-polygonal ferrite,polygonal ferrite mixed organization were obtained.The thick X65MS acid resistant pipeline steel was successfully developed.Research on tensile test,impact test,drop weight tear test,microstructure analysis,and high and low magnification analysis of impact fracture surfaces has been analyzed.The results show that the mechanical tensile properties and impact energy absorption of the steel plate are stable,the drop weight tear performance is excellent,the microstructure is ideal,and the strength toughness matching is good.关键词
X65MS抗酸管线钢/TMCP工艺/粒状贝氏体/强韧性/落锤性能Key words
X65MS acid resistant pipeline steel/TMCP process/granular bainite/strength and toughness/drop weight property分类
矿业与冶金引用本文复制引用
吴海虹..大厚度X65MS抗酸管线钢的研制开发[J].科技创新与应用,2025,15(16):29-31,38,4.
