电站用T91钢的性能及焊接  

Performance and welding of T91steel used for power plants

作　　者：吴军 

机构地区：[1]山东电力科学研究院,济南250002

出　　处：《中国电力》2002年第10期40-44,共5页Electric Power

摘　　要：从化学成分、合金化原理、室温力学性能、高温力学性能、焊接接头的微观特点、焊接裂纹敏感性等几个方面系统介绍了T91钢的研究现状,并指出掌握T91钢的焊接和高温运行行为,克服其焊缝韧性劣化倾向及HAZ蠕变断裂强度下降,以充分发挥母材潜力,是T91钢的焊接研究急需突破的技术难题和紧迫任务。This paper introduces systematically the studying situation of T91steel in terms of its chemical composition,alloying principle,room-temperature mechanical performance,high-temperature mechanical performance,microscopic feature of welding bond,welding crack sensitivity etc.,and points out that,in order to bring its potential into full play,it is urgent to overcome the bad properties of the weld metal zone and HAZ in T91steel.

关 键 词：电站 T91钢 性能 焊接 超临界压力锅炉 

分 类 号：TG142[一般工业技术—材料科学与工程]