ISSN:
1662-9752
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
This paper deals with new approach of measurement of the concentration profiles,concerning the redistribution of substitution elements in close vicinity of welded joint of twodifferent steels. These concentrations have been measured in three straight lines in a planeperpendicular to the weld interface. The concentration profiles have been evaluated fromexperimental data by modelling of diffusion based on 2nd Fick’s law. Original computation programfor nonlinear regression was evolved based on Levenberg - Marquardt`s algorithm for evaluation ofdiffusivities and other quantities. Three groups of measured data enable variations in methodologyof their processing. If each group is processed individually then the possible differences in mutualposition of concentration profiles offers the view on chemical heterogeneity of welded joint
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/18/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.567-568.305.pdf
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