摘要
采用回振法测试45钢的横波声速。实验结果表明,不同热处理的45钢有不同的组织,不同的组织对应不同的声双折射因子。实验研究发现,在自由边界且应力效应小的条件下,钢的晶粒细小且均匀时,声双折射因子小;反之,声双折射因子大。
The transverse wave velocity of the 45 steel was measured by the sing-around method. The result of experiment showed the 45 steel with different heat treatment had different structures and different birefringences. It was found that the fine evengrained steel had little birefringence, otherwise had large birefringence.
出处
《物理测试》
CAS
2009年第2期1-4,25,共5页
Physics Examination and Testing
基金
江苏省重点实验室开放研究基金课题(SJ05046)
关键词
声弹性
热处理
组织
回振法
acoustoelasticity
heat treatment structure sing-around
