Transactions of the Indian Institute of Metals

, Volume 72, Issue 2, pp 343–351 | Cite as

Distinguishing Welding Defects from the Stress Concentration Zone Using Metal Magnetic Memory Field Parameters

  • Xu KunshanEmail author
  • Mingguang Feng
  • Xingxi Qiu
Technical Paper


In this study, we propose a technique for differentiating MMMT signals from the welding defects and stress concentration zones by evaluating changes in the intensity of the magnetic memory signal and gradient of its change. The results demonstrate that the average and maximum values of the magnetic field intensity gradient vary relative to the presence of a welding defect zone; this gradient can be seen as the area under the magnetic field intensity curves. These parameters can be considered as a basis for distinguishing welding defects from the stress concentration zone. Finally, we present diagnosis and damage determinations of various welding defects and stress concentrations and propose a connection to magnetic and non-magnetic defects. The technique presented here can be potentially used to enhance the MMMT application for better diagnosis and understanding of welded joints and failure mechanisms.


Welding defect Stress concentration Metal magnetic memory Defect evaluation Microcracks Ferromagnetic defect interfaces 



This work was financially supported by the National High Technology Research and Development Program 863 of the People’s Republic of China under Grant (No. 2013AA092602), Shandong Provincial Key Laboratory, Shandong Light Hydrocarbon Collaborative Innovation Center, Shandong Provincial Key Laboratory (specialized in the manufacture of new materials), and Shandong Provincial Science and Technology Plan Project (Grant No. J18KB007) of the People’s Republic of China.

Compliance with ethical standards

Conflict of interest

We declare that we have no financial and personal relationships with other people or organizations that can inappropriately influence our work and there is no professional or other personal interest of any nature or kind in any product, service and/or company that could be construed as influencing the position presented in the manuscript entitled ‘Distinguishing welding defects from the stress concentration zone using metal magnetic memory field parameters’.


  1. 1.
    Dubov A, Therm Eng 57 (2010) 16.CrossRefGoogle Scholar
  2. 2.
    Dubov A, Chem Petrol Eng 47 (2012) 837.CrossRefGoogle Scholar
  3. 3.
    Dubov A, and Kolokolnikov S, Weld World 57 (2013) 123.CrossRefGoogle Scholar
  4. 4.
    Altpeter I, Dobmann G, and Kröning M, Nondestruct Test Eval Int 42 (2009) 283.Google Scholar
  5. 5.
    Withers P J, Turski M, Edwards L, Bouchard P J, and Buttle D J, Int J Pres Ves Pip 85 (2007) 118.CrossRefGoogle Scholar
  6. 6.
    Liu B, Fu Y, and Xu B, Res Nondest Eval 26 (2015) 1.CrossRefGoogle Scholar
  7. 7.
    Liu B, Fu Y, and Jian R, Nondestruct Test Eval 30 (2015) 13.CrossRefGoogle Scholar
  8. 8.
    Xu M-X, Xu M-Q, Li J-W, and Xing H Y, J Cent South Univ 19 (2012) 1488.CrossRefGoogle Scholar
  9. 9.
    Li X-M, Ding H-S, and Bai S-W, Nondestruct Test Eval Int 62 (2014) 50.Google Scholar
  10. 10.
    Leng J, Liu Y, Zhou G, and Gao Y, Nondestruct Test Eval Int 55 (2013) 42.Google Scholar
  11. 11.
    Huang H, Jiang S, Yang C, and Liu Z, Nondestruct Test Eval 29 (2014) 377.CrossRefGoogle Scholar
  12. 12.
    Huang H, Yao J, Li Z, and Liu Z, Nondestruct Test Eval Int 63 (2014) 38.Google Scholar
  13. 13.
    Roskosz M, and Gawrilenko P, Nondestruct Test Eval Int 41 (2008) 570.Google Scholar
  14. 14.
    Roskosz M, Nondestruct Test Eval Int 44 (2011) 305.Google Scholar
  15. 15.
    Zhang Y, Yang A, and Xu X, Front Mech Eng China 4 (2009) 40.CrossRefGoogle Scholar
  16. 16.
    Leng J, Xu M, Xu M, and Zhang J, NDT E Int 42 (2009) 410.CrossRefGoogle Scholar
  17. 17.
    Roskosz M, and Bieniek M, Nondestruct Test Eval Int 45 (2012) 55.Google Scholar
  18. 18.
    Yao K, Shen K, Wang Z-D, and Wang Y S, J Magn Mater 354 (2014) 112.CrossRefGoogle Scholar
  19. 19.
    Dubov A, and Kolokolnikov S, Weld World 57 (2013) 123.CrossRefGoogle Scholar
  20. 20.
    Wang Z D, Yao K, Deng B, and Ding K Q, Nondestruct Test Eval Int 43 (2010) 354.Google Scholar
  21. 21.
    Wang Z D, Yao K, Deng B, and Ding K Q, Nondestruct Test Eval Int 43 (2010) 513.Google Scholar
  22. 22.
    Wang Z D, Gu Y, and Wang Y S, J Magn Mater 324 (2012) 382.CrossRefGoogle Scholar
  23. 23.
    Yao K, Wang Z D, Deng B, and Shen K, Exp Mech 52 (2012) 305.CrossRefGoogle Scholar
  24. 24.
    Ruud C O, Nondestruct Test Eval Int 15 (1982) 15.Google Scholar
  25. 25.
    Ruud C O, J Miner Met Mater Soc 33 (1981) 35.CrossRefGoogle Scholar
  26. 26.
    Dong L, Xu B, Dong S, Song L, Chen Q, and Wang D, Nondestruct Test Eval Int 42 (2009) 323.Google Scholar
  27. 27.
    Shi C, Dong S, Xu B, and Peng H, Nondestruct Test Eval Int 43 (2010) 8.Google Scholar
  28. 28.
    Wilson J, Tian G Y, and Barrans S, Sens Actuators A Phys 135 (2007) 381.CrossRefGoogle Scholar
  29. 29.
    Martins J A, Cardoso L P, Fraymann J A, and Button S T, J Mater Process Technol 179 (2006) 30.CrossRefGoogle Scholar
  30. 30.
    Wang Z D, Deng B, and Yao K, J Appl Phys 109 (2011) 083928-1.Google Scholar
  31. 31.
    Xu K, Qiu, X, and Tian X, J Nondestruct Eval 6 (2017) 36Google Scholar
  32. 32.
    Jiles D C, Introduction to Magnetism and Magnetic Materials, 2nd edn, Chapman and Hall Press, London (1998).Google Scholar
  33. 33.
    Birss R, IEEE Trans Magn 7 (1971) 113.CrossRefGoogle Scholar
  34. 34.
    Wang Z D, Deng B, and Yao K, J Appl Phys 109 (2011) 083928.CrossRefGoogle Scholar
  35. 35.
    Xu Z, Jin Y, Zhang Z, and Jin W, Ordnance Mater Sci Eng 2 (2001) 3.Google Scholar
  36. 36.
    Kunshan X, Xingqi Q, and Xiaoshuai T, Nondestruct Test Eval 2 (2017) 1.Google Scholar

Copyright information

© The Indian Institute of Metals - IIM 2018

Authors and Affiliations

  1. 1.College of Chemistry and Chemical EngineeringYantai UniversityYantaiChina
  2. 2.Yantai Special Equipment Inspection InstituteYantaiChina
  3. 3.School of Chemical EngineeringChina University of Petroleum (East China)QingdaoChina

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