Electronic structure of the structural components of a surface layer obtained by laser alloying

V. S. Postnikov

doi:10.1117/12.337521

20 January 1999 Electronic structure of the structural components of a surface layer obtained by laser alloying

V. S. Postnikov

Proceedings Volume 3688, 6th International Conference on Industrial Lasers and Laser Applications '98; (1999) https://doi.org/10.1117/12.337521
Event: 6th International Conference on Industrial Lasers and Laser Applications '98, 1998, Shatura, Moscow Region, Russian Federation

Abstract

It has been shown with the help of x-ray researches that the electronic structure of structural components formed in a surface layer of steel during laser alloying differs form that of similar structural components formed in equilibrium conditions. Saturation of a solid solution beyond the limit solubilities during laser alloying leads to some increase of electron localization on atoms. The analysis of distribution of electronic density in an elementary cell of a solid solution shows that some part of atoms of boron is dissolved in a solid solution on the basis of iron by replacement. The nonequilibrium process of cooling after crystallization leads to appreciable change of an electronic structure of boron iron Fe₂B. The comparison of boron iron, formed in equilibrium conditions, with boron iron form a laser alloyed layer shows that in an elementary cell of latter the distribution of electronic density is more dim, that allows to speak about some decrease of a degree of electron localization on atoms.

Citation Download Citation

V. S. Postnikov "Electronic structure of the structural components of a surface layer obtained by laser alloying", Proc. SPIE 3688, 6th International Conference on Industrial Lasers and Laser Applications '98, (20 January 1999); https://doi.org/10.1117/12.337521

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