铁磁性材料疲劳性能磁记忆检测分析方法研究  

Reserarch of Metal Magnetic Memory Technology on Inservice Ferromagnetic Fatigue Characteristic

作　　者：李彦阳[1] 徐敏强[2] Li Yanyang;Xu Minqiang(Heilongjiang Bayi Agricultural University,Daqing 163319;Harbin Institute of Technology)

机构地区：[1]黑龙江省八一农垦大学,大庆163319 [2]哈尔滨工业大学

出　　处：《黑龙江八一农垦大学学报》2019年第2期79-85,106,共8页journal of heilongjiang bayi agricultural university

摘　　要：金属磁记忆检测技术是无损检测领域的一门新兴学科,简要介绍磁记忆的检测原理,应用自行设计的金属磁记忆检测系统研究45号钢在循环载荷下疲劳性能变化规律,试验表明把金属构件应力集中处的磁感应强度的切向分量的增加量作为阈值,可以预估剩余疲劳寿命。An effective method of monitoring the states of stress in equipment and structures is based on magnetic metal memory(MMM),which constitutes an essentially new line in fatigue damage diagnosis.Aiming at the problems of the magnetism memory technology applying in fatigue condition,this paper study the relation between the fatigue process and the magnetic memory signal and especially design a magnetic metal memory(MMM)test system.

关 键 词：磁记忆 铁磁性材料 疲劳寿命 疲劳载荷 

分 类 号：TM271[一般工业技术—材料科学与工程] TB302.3[电气工程—电工理论与新技术]