A key issue, which influences the applications of magnetic flux leakage testing, is defect quantification. There have been many research on the relationship between width, depth and magnetic flux leakage of slot defect. However, the length factor is often ignored. The relationship between characteristics of defect leakage field and defect length was investigated. The magnetic flux leakages of a series of plate specimens with the same width, same depth and different length slot defects were tested under the same magnetizing conditions. Testing results show that defect length is an important parameter needed to consider in quantifying defects.
参考文献
| [1] | Luming LI;Peng ZHEGN;Songling HUANG;Jiajun ZHANG .[J].J. Tsinghua Univ. Sci. Technol,1999,39(02):43. |
| [2] | L M Li;J J Zhang .Non-destructive Characterisation of Materials VIII[Z].,1998. |
| [3] | F.Foerster .[J].NDT & E International,1986,19(01):3. |
| [4] | W Lord;J H Hwang .Br. J[J].NDT & E International,1977,29(01):14. |
| [5] | G.Dobmann;G.Walle;P. Hoesller .[J].NDT & E International,1987,20(02):101. |
| [6] | D C Jiles .[J].NDT & E International,1990,23(02):83. |
| [7] | Eduardo Altschuler;Alborto Pignotti .[J].NDT & E International,1995,28(01):35. |
| [8] | M. Katoh;K. Nishio;T. Yamaguchi .FEM study on the influence of air gap and specimen thickness on the detectability of flaw in the yoke method[J].NDT & E international: Independent nondestructive testing and evaluation,2000(5):333-339. |
| [9] | W Lord;J M Bridge;W Yen .Mater[J].Evaluation,1978,36(08):47. |
| [10] | D L Atherton .Br. J[J].NDT & E International,1988,30:159. |
| [11] | Luming LI,Songling HUANG,Peng Zheng,Keren SHI.Evaluation of Surface Cracks Using Magnetic Flux Leakage Testing[J].材料科学技术学报(英文版),2002(04):319-321. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%