CHARACTERIZATION OF CHEMICAL HETEROGENEITY OF THE WELDED JOINT OF TWO STEELS BY MODELLING OF DIFFUSION PROCESSES

被引：0
|
作者：
Rehackova, L. [1 ]
Dobrovska, J. [1 ]
Kalousek, J. [1 ]
机构：
[1] VSB TU Ostrava, FMME, Ostrava, Czech Republic
来源：
METALURGIJA | 2013年 / 52卷 / 03期
关键词：
diffusion; distribution of substitution elements; chemical heterogeneity; weld; steel; CARBON REDISTRIBUTION; WELDMENTS; ELEMENTS;
D O I：
暂无
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The paper deals with original methodology for characterization of chemical heterogeneity of weldedjoint by measurement of concentration profiles of substitution elements in three straight lines in a plane perpendicular to the weld interface. Three concentration profiles were evaluated by modelling of diffusion based on solution of the 2nd Fick's law. Primary goal of evaluation consists in characterization of chemical heterogeneity in the narrow area on both sides of the welded joint on the basis of their mutual position. Experimental data are optimised by original adaptation of the Levenberg-Marquardt's algorithm of non-linear regression. The paper deals with diffusion of nickel in the welded joint of two different steels as an example of investigated elements.
引用
收藏
页码：355 / 358
页数：4
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  • [2] On mathematical modelling of the diffusion characteristics in the close vicinity of two steels welded joint
    Rehackova, Lenka
    Kalousek, Jaroslav
    Dobrovska, Jana
    [J]. MATERIALS STRUCTURE & MICROMECHANICS OF FRACTURE, 2011, 465 : 133 - 136
  • [3] On mathematical modelling of substitution elements diffusion in the neighbourhood of welded joint of steels
    Rehackova, Lenka
    Kalousek, Jaroslav
    Dobrovska, Jana
    Stransky, Karel
    [J]. MATERIALS STRUCTURE & MICROMECHANICS OF FRACTURE V, 2008, 567-568 : 305 - +
  • [4] Assessment of heterogeneity of welded joint of two different metals by modeling of diffusion of substitution elements
    Rehackova, L.
    Kalousek, J.
    Dobrovská, J.
    Dostál, Z.
    Stránský, K.
    [J]. Solid State Phenomena, 2008, 138 : 193 - 200
  • [5] Assessment of heterogeneity of welded joint of two different metals by modeling of diffusion of substitution elements
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    [J]. Solid State Phenomena, 2008, (193-200) : 193 - 200
  • [6] STRUCTURAL, CHEMICAL AND DEFORMATION CHANGES IN FRICTION WELDED JOINT OF DISSIMILAR STEELS
    Ratkovic, N.
    Nikolic, R.
    Samardzic, I.
    [J]. METALURGIJA, 2014, 53 (04): : 513 - 516
  • [7] CHEMICAL MICROHETEROGENEITY OF WELDED JOINT IN WELDING OF PIPE STEELS WITH INCREASED STRENGTH
    TARLINSKII, VD
    [J]. WELDING PRODUCTION, 1975, 22 (08): : 7 - 10
  • [8] CRACKING RESISTANCE OF WELDED-JOINTS IN DISSIMILAR STEELS .1. EFFECT OF MECHANICAL HETEROGENEITY OF THE WELDED JOINT
    ZEMZIN, VN
    BOIKOVA, KI
    [J]. WELDING PRODUCTION, 1982, 29 (05): : 2 - 6
  • [9] Hydrogen diffusion coefficient and modelling of hydrogen behaviour in welded joints of structural steels
    Alexandrov, B.T.
    [J]. Welding in the World, 2003, 47 (9-10) : 21 - 29
  • [10] CHEMICAL MICROHETEROGENEITY OF THE WELDED JOINT IN THE WELDING OF PIPE STEELS WITH INCREASED STRENGTH.
    Tarlinskii, V.D.
    [J]. Welding Production (English translation of Svarochnoe Proizvodstvo), 1975, 22 (08): : 7 - 10
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