钢管2023，Vol.52Issue(6)：26-29,4.DOI:10.19938/j.steelpipe.1001-2311.2023.6.26.29
超级13Cr马氏体不锈钢管韧性低的原因分析和措施
Analysis of Reason for Low Toughness of Super 13Cr Martensitic Stainless Steel Pipe and Relevant Countermeasures
王锦永 1曹洪波 1张艳 1郑磊 1王锟 1祖兴华 1陈辉1
作者信息
- 1. 邯郸新兴特种管材有限公司,河北邯郸 056000
- 折叠
摘要
Abstract
Aiming at the event that the post-heat treatment toughness of a certain batch of the super 13Cr seamless steel pipe,based on the manufacturing process,all the tests are conducted to the pipe in terms of microstructure,non-metallic inclusion,tensile property,impact energy and chemical composition.It is revealed via the analysis that after being quenched,the pipe's hardness is rather low,and due to quenching and tempering treatment,its microstructure is not homogeneous enough,and there exist many coarse ferrite phases as parallel to the axis of the steel pipe,and distributed between the phases,which breaks the continuity of the matrix structure,and leads to the low transverse impact energy.The corresponding countermeasures are put forward and taken for the said batch of pipes and the remaining raw materials,including increasing the deformation amount of the steel pipe,and changing the quenching and the tempering processes so as to optimize the metallographic structure,and thus improve the performance of the product.关键词
不锈钢管/超级13Cr/显微组织/拉伸性能/冲击功/淬火/回火Key words
stainless steel pipe/super 13Cr/microstructure/tensile properties/impact energy/quenching/tem-pering引用本文复制引用
王锦永,曹洪波,张艳,郑磊,王锟,祖兴华,陈辉..超级13Cr马氏体不锈钢管韧性低的原因分析和措施[J].钢管,2023,52(6):26-29,4.
