Q345B H型钢高应变低周疲劳断口分析  

Failure Analysis of High-strain Low-cycle Fatigue for Q345B H-beam

作　　者：付常伟 韩蕾蕾 吴彦国 王京亮 

机构地区：[1]技术研发中心 [2]型钢厂

出　　处：《莱钢科技》2009年第4期38-41,共4页Laigang Science & Technology

摘　　要：介绍了典型的拉-压疲劳失效的形成机理、宏观形貌以及微观形貌,并对Q345B H型钢高应变低周疲劳断口进行了分析,为今后进行相关疲劳研究奠定基础。The formation mechanism,macro pattern and microcosmic pattern of representative pull-press fatigue failure are presented,and an failure analysis of high-strain low-cycle fatigue fracture of Q345B H-beam was carried out,laying a foundation for fatigue-related researches in the future.

关 键 词：Q345B H型钢 高应变低周疲劳断口 断口分析 

分 类 号：TG142.71[一般工业技术—材料科学与工程] TU473.16[金属学及工艺—金属材料]