Modeling of the electron-beam boriding in the system Fe-B-C-O2

5th International Congress on Energy Fluxes and Radiation Effects 2016

Dasheev, D.E.^1 ; Smirnyagina, N.N.^1

Institute of Physical Materials Science SB RAS, Ulan-Ude

670047, Russia^1

关键词: Functional layer;    In-vacuum;    Iron boride;    Iron-carbon alloys;    Strength characteristics;    Surface layers;    Thermodynamic studies;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/830/1/012070/pdf
DOI  :  10.1088/1742-6596/830/1/012070

来源: IOP

【 摘 要 】

This paper reviews the conditions of iron borides formation and simulation of surface layers saturation depending on the stoichiometry of original components. Temperature fields have been investigated as well, which form certain phases in accordance with the pressure in the chamber and the power of the electron beam. A thermodynamic study of phase equilibria in Fe-B-C-O systems has been performed. This was done in order to optimize conditions for forming functional layers on the surface of iron-carbon alloys as a result of electron beam boriding in vacuum. Furthermore, strength characteristics of iron boride layers have been determined. Then these layers obtained by different methods and using various source components have been thoroughly compared with each other during the analysis.