Search academic texts

Information × Registration Number 0208U004867, 0106U002323 , R & D reports Title The diffusion zone formation by methods combined laser and electrospark thermochemical treatment of iron alloys popup.stage_title Head Sidorenko Sergey Ivanovich, Доктор фізико-математичних наук Registration Date 23-12-2008 Organization National Technical University of Ukraine "Kiev Polytechnic Institute", Mechanical Building Institute, chair Resistance of Materials popup.description2 In this work the conformities to the law of the hard diffusive area formation were established at laser and electro-spark thermochemical treatment of iron and its alloys. Researches were conducted by a microstructural, microhardness, phase X-ray, electron microscopy analysis and method of radio-isotopes (to the method of deplating). It is shown that laser treatment and electro-spark alloying by titanium, chrome and zirconium in gases environments with carbon and nitrogen results in the saturation of superficial layers by a carbon and nitrogen and increase of hardness to 10 - 14 GPa as a result of formation of the developed dislocation structure and formation of fine carbides and nitrides of alloying elements. Research by the method of radio-isotopes shown that nature of alloying element influenced on to mass transfer of alloy constituents at electro-spark treatment and, accordingly, on a structure and properties of both alloying area and area located under the surface of specimen. Product Description popup.authors popup.nrat_date 2020-04-02 Close