摘要
为推动高性能材料在压力容器制造中的应用,提升压力容器整体服役性能,针对不同工艺生产的Q420D、Q460D、Q550D与Q690D这4种典型高强度低合金结构钢的化学成分、显微组织、冲击性能、拉伸性能及硬度等指标进行了试验研究。研究结果表明,Q420D与Q460D显微组织均主要由铁素体+珠光体组成,Q550D与Q690D显微组织均由粒状贝氏体组成。与Q420D相比,Q460D、Q550D、Q690D在强度、硬度以及冲击韧性方面性能较优,满足压力容器用钢技术要求,可应用于国内压力容器制造中。结合组织性能均匀性进行综合评价,认为Q550D在压力容器制造中具有较好的性能优势。
To promote the application of high performance materials in pressure vessel manufacturing and improve the overall performance.The chemical composition,microstructure,impact property,tensile property,and hardness of four typical high strength low alloy structural steel,including Q420D,Q460D,Q550D,and Q690D were analyzed.Results show the main microstructure of both Q460D and Q550D was consists of ferrite and pearlite.The microstructure of both Q550D and Q690D was consists of granular bainite.Q460D,Q550D,Q690D perform better in strength,hardness,and impact toughness compared to Q420D,satisfy the technical requirements of steel for pressure vessels,and can be used in the manufacturing of pressure vessels.Combining uniformity of microstructure to evalucate,Q550D has a higher performance advantage in pressure vessel manufacturing.
作者
刘五兵
王文君
王世清
李方坡
洪宁
LIU Wu-bing;WANG Wen-jun;WANG Shi-qing;LI Fang-po;HONG Ning(School of Materials Science and Engineering,Xi’an Shiyou University,Xi’an 710065,China;CNPC Tubular Goods Research Institute,Xi’an 710077,China;CNPC National Engineering Research Center for Oil&Gas Drilling Equipment Co.Ltd.,Baoji 721008,China;Ansteel Engineering Technology Corporation Limited,Anshan 114000,China)
出处
《石油化工设备》
CAS
2022年第2期6-10,共5页
Petro-Chemical Equipment
基金
中国石油天然气集团公司科研项目(2021ZG14,2018E-2101,2019B-4014)。
关键词
压力容器
高强度低合金结构钢
显微组织
力学性能
pressure vessel
high strength low alloy structural steel
microstructure
mechanical property
