Conference paper

Publication year: 2005

Journal: Journal of Applied Physics

Volume number: 97

Issue number: 10

ISSN: 0021-8979

DOI Link: https://doi.org/10.1063/1.1852391

Conference: 49th Annual Conference on Magnetism and Magnetic Materials

Publisher: American Institute of Physics

Abstract: 
For the detection of defects in aluminum laser welds an anisotropic magnetoresistive (AMR) sensor array was implemented in an eddy current testing system. The reliability of weld testing is strongly influenced by the texture of the laser weld whose field response significantly superimposes the defect's magnetic signature. A finite-element model was used to determine the influence of the weld's topology on the detection of defects such as porosities and inclusions hosted in the aluminum matrix. When using an AMR sensor array with field sensitivity of better than 1 nT/root Hz defects with a radius smaller than 100 mu m could be detected and classified. (c) 2005 American Institute Of Physics.

Harvard Citation style: Allweins, K., von Kreutzbruck, M. and Gierelt, G. (2005) Defect detection in aluminum laser welds using an anisotropic magnetoresistive sensor array, Journal of Applied Physics, 97(10), Article 10Q102. https://doi.org/10.1063/1.1852391

APA Citation style: Allweins, K., von Kreutzbruck, M., & Gierelt, G. (2005). Defect detection in aluminum laser welds using an anisotropic magnetoresistive sensor array. Journal of Applied Physics. 97(10), Article 10Q102. https://doi.org/10.1063/1.1852391