铁磁性材料表面残余应力巴克豪森效应的评价

详细信息

Barkhausen Evaluation about Surfa Residual Stress of Ferromagnetism Material

摘要: 利用巴克豪森效应对超高强度钢表面残余应力进行测量。通过悬臂梁应力加载试验确定应力与巴克豪森信号值之间关系并得到标定曲线，再通过标定曲线半定量化推算出残余应力值，并与X射线应力分析仪测得的应力值进行比对。试验发现巴克豪森法能做到无损快速地测量零件表面及亚表面残余应力，测量深度大，能够评价零件机械加工表层下基体残余应力状况。
- 残余应力 /
- 巴克豪森效应 /
- 悬臂梁 /
- X射线 /
- 标定曲线
Abstract: It is study of residual stress measuring to super-strength steel by the method of Barkhausen Noise.Get the the demarcate curve from the relation about Barkhausen Noise and stress by the Cantilever stress loading experimentation,then half-rationing calculated the residual stress value by Demarcate curve.And the value measured will be contrasted to the values by the X-ray method.It is finded that the residual stress on parts surface or in can be measured deep by Brakhausen method,and can evaluate the residual stress to the machined parts.
- Residual stress /
- Barkhausen effect /
- Cantilever /
- X-ray /
- Demarcate curve

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