汽轮机缸体用耐热钢持久强度与塑性研究  

Creep Rupture Strength and Plasticity of Heat Resistence Steel for Stream-turbine Cylinder

作　　者：王冬梅 张庄[2] 赵爱彬[1] 白新房 

机构地区：[1]哈尔滨工程大学机电工程学院,黑龙江哈尔滨150001 [2]钢铁研究总院分析测试所,北京100081

出　　处：《物理测试》2006年第3期8-11,共4页Physics Examination and Testing

摘　　要：文章对汽轮机缸体用钢进行了593℃持久强度和持久塑性的研究。在应力-时间双对数坐标下进行线性拟合,外推得到该耐热钢105h的持久强度;并对不同断裂时间条件下持久塑性变化进行了分析和讨论。用金相显微镜和SEM对未时效试样及经过593℃时效5 600 h试样的微观组织进行了观察与分析。The creep rupture strength and endurance plasticity of stream-turbine cylinder steel at 593 ℃ was studied. Linear fit was done at log-log coordinate of creep rupture strength and time, and get the creep rupture strength of 10^5 h for the heat resistence steel by meansd of extrapolation. The change of endurance plasticity with the rupture time was analysed and discussed. The microstructure before aging and after S 600 h aging was observed and analysed by metallogragh and SEM.

关 键 词：持久强度 持久塑性 显微组织 

分 类 号：TK265[动力工程及工程热物理—动力机械及工程]