摘要
P91/T91钢具有优异的高温强度,在电站、石油化工工业中具有广泛的应用前景;对国内该钢的力学性能、冶炼与热处理工艺和同种钢、异种钢的焊接工艺等方面进行了综述。目前国产钢的力学性能可满足ASTM标准,蠕变性能与ASTM标准值基本相当,焊接接头的疲劳性能优异;但该钢特别是焊接接头的长时高温性能仍需进一步进行研究和改进。
P91/T91 steel has excellent rupture strength at high temperatures. Therefore, it has broad application prospects in power station and petrochemical enterprise. The mature melting and heat treatment of Pgl/ Tgl steel in China are reviewed from several aspects of manufacturing, welding procedure and mechanical properties, and the welding problem with homogeneous or dissimilar steel is described. The properties of Pgl/Tgl steel meet the demand of ASTM standard , and the creep properties are similar to ASTM standard. Fatigue properties of P91/T91 welding joints are excellent. However, the long-time high temperature properties of P91/T91 steel, especially the welding joints, need further research.
出处
《机械工程材料》
CAS
CSCD
北大核心
2010年第6期6-9,共4页
Materials For Mechanical Engineering
基金
国家自然科学基金资助项目(50835003,50805048)
上海市自然科学基金资助项目(08ZR1405700)
教育部新教师基金资助项目(200802511008)
关键词
耐热钢
P91钢
T91钢
疲劳性能
蠕变性能
heat-resistant steel
Pgl steel
Tgl steel
fatigue property
creep property
