淬硬层深度巴克豪森噪音检测方法的研究  

The research for Barkhausen noise to test the hardened depth

作　　者：刘玉斌[1] 师杭军[1] 孟凡勤[1] 张成[1] 

机构地区：[1]空军后勤学院,江苏徐州221006

出　　处：《煤矿机械》2001年第10期24-25,共2页Coal Mine Machinery

摘　　要：叙述了巴克豪森噪音 (BarkhausenNoise简称BN)的理论 ,运用畴壁理论解释了影响巴克豪森噪音的因素 ,并给出了材料内部微量元素的含量对巴克豪森噪音影响的理论表达式 ,研究了钢微观结构的变化对巴克豪森噪音的影响 ,并通过实验给出了 4In this paper,the theory of and its influenced aspect were pointed out.The theoretical expression for the influence of trace element in steel to Barkhausen noise was also givern.By experiment,the corresponding relation between the intensity of BN signal and the hardened depth for 45 steel was botained.

关 键 词：巴克豪森噪音 畴壁 淬硬层深度 磁法检测 铁磁材料 无损检测方法 45钢 

分 类 号：TG156.36[金属学及工艺—热处理] TG115.284[金属学及工艺—金属学]