Paper Title:
On Mathematical Modelling of Substitution Elements Diffusion in the Neighbourhood of Welded Joint of Steels
  Abstract

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 two different steels. These concentrations have been measured in three straight lines in a plane perpendicular to the weld interface. The concentration profiles have been evaluated from experimental data by modelling of diffusion based on 2nd Fick’s law. Original computation program for nonlinear regression was evolved based on Levenberg - Marquardt`s algorithm for evaluation of diffusivities and other quantities. Three groups of measured data enable variations in methodology of their processing. If each group is processed individually then the possible differences in mutual position of concentration profiles offers the view on chemical heterogeneity of welded joint.

  Info
Periodical
Materials Science Forum (Volumes 567-568)
Edited by
Pavel Šandera
Pages
305-308
DOI
10.4028/www.scientific.net/MSF.567-568.305
Citation
L. Řeháčková, J. Kalousek, J. Dobrovská, K. Stránský, "On Mathematical Modelling of Substitution Elements Diffusion in the Neighbourhood of Welded Joint of Steels", Materials Science Forum, Vols. 567-568, pp. 305-308, 2008
Online since
December 2007
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Yong Jiang, Jian Ming Gong, Zheng Gang Yu, Dong Song Rong
Abstract:In this paper, mechanical performance test, slow strain rate test (SSRT) and optical microscopy analysis were employed in studying the effect...
34
Authors: Gui Jie Liu, Xin Wang, An Jin Li
Abstract:In offshore jacket platforms, the structural steels are widely used and usually welded connected. This paper presents the welding of 45#...
263
Authors: S. Muthukumaran, C. Vijaya Kumar, S. Senthil Kumaran, A. Pradeep
Chapter 3: Surface, Subsurface, and Interface Phenomena
Abstract:Joining of dissimilar materials is of increasing interest for a wide range of industrial applications like nuclear, thermal power. The...
877
Authors: Chun Yuan Shi, Ping Zhu, Kun Zhou
Chapter 5: Materials Processing and Chemical Technologies
Abstract:Using finite element method, the residual stress distribution of TIG dressed welded toe followed by chilling treatment with different...
529
Authors: Maria Cristina Dijmarescu, Dumitru Titi Cicic, Corneliu Rontescu, Gheorhe Solomon
Abstract:The reactions of the base material, during the welding process, consist in chemical composition, volume, structure and granulation changes....
31