高参数汽轮机螺栓用高温合金材料研究  

Study of Superlloy for Bolts of Steam Turbine with High Parameter

作　　者：彭建强[1] 刘新新[1] 吕振家[1] PENG Jianqiang;LIU Xinxin;LV Zhenjia(Harbin Turbine Company Limted,Harbin Heilongjiang,150046)

机构地区：[1]哈尔滨汽轮机厂有限责任公司,黑龙江哈尔滨150046

出　　处：《东方汽轮机》2023年第1期38-42,共5页Dongfang Turbine

摘　　要：文章介绍了国内外高参数汽轮机高温螺栓用高温合金材料的特性,重点分析了这些合金的线膨胀系数、高温强度、高温蠕变持久强度等材料性能,及螺栓断裂失效案列,为国内高参数超超临界汽轮机用高温螺栓的选材和预防断裂提供建议。this paper introduces the characteristics of the superlloy for bolts of steam turbine,and paticularly analyzes the linear expasion efficicents,elevated temperature tensile strength,and creep ruputure strength,as well as the bolt rupture cases,and finally provide suggestions of material selection and prevetion fracture of high temperature bolts for domestic steam turbine with high parameter.

关 键 词：汽轮机 高温螺栓 拉伸强度 蠕变持久性能 断裂 

分 类 号：TG162[金属学及工艺—热处理]