压力容器2024，Vol.41Issue(6)：16-22,7.DOI:10.3969/j.issn.1001-4837.2024.06.003
焊后消氢处理对核电承压设备用022Cr23Ni5Mo3N双相不锈钢组织及性能的影响
Effect of post-weld hydrogen relief treatment on microstructure and properties of 022Cr23Ni5Mo3N duplex stainless steel in nuclear power pressure equipment
张瀚宁 1管吉春 2李黎明 3王勇 1颜秉宇1
作者信息
- 1. 海洋装备用金属材料及其应用国家重点实验室,辽宁鞍山 114009||鞍钢集团钢铁研究院,辽宁鞍山 114009
- 2. 鞍钢股份有限公司,辽宁鞍山 114009
- 3. 鞍钢集团有限公司,辽宁鞍山 114009
- 折叠
摘要
Abstract
Post-weld hydrogen relief treatment was conducted on 022Cr23Ni5Mo3N duplex stainless steel for pressure equipment at 300～400℃ in order to study the changes of microstructure and properties of that duplex stainless steel,and the effects of different post-weld hydrogen relief treatment temperatures on the microstructure of the materials were analyzed by optical microscope(OM),scanning electron microscope(SEM)and transmission electron microscope(TEM),and the mechanical properties and corrosion resistance of the stabilized samples were tested.The research results show that the precipitation phase is dominated by Cr-rich α'phase,which is mainly produced by ferrite structure.At the same holding time,with the increase of post-weld hydrogen relief treatment temperature,the precipitation of the structure gradually increases.Due to the pinning effect of precipitated phase on grain boundary,the strength of the material is increased,the toughness is obviously decreased,but it still maintains good corrosion resistance.关键词
承压设备/双相不锈钢/焊后消氢处理/显微组织/析出相Key words
pressure equipment/duplex stainless steel/postweld hydrogen relief treatment/microstructure/precipitated phase分类
机械制造引用本文复制引用
张瀚宁,管吉春,李黎明,王勇,颜秉宇..焊后消氢处理对核电承压设备用022Cr23Ni5Mo3N双相不锈钢组织及性能的影响[J].压力容器,2024,41(6):16-22,7.
