Open AccessCombined electron-ion-plasma boriding of high-chrome austenitic steel
Author(s) -
Yu. F. Ivanov,
Е. А. Петрикова,
А. Д. Тересов,
О. С. Толкачев,
Д. А. Романов
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1347/1/012096
Subject(s) - materials science , boriding , metallurgy , chromium , nanocrystalline material , boron , austenite , surface layer , titanium , layer (electronics) , hardness , surface modification , austenitic stainless steel , composite material , microstructure , corrosion , boride , chemical engineering , chemistry , organic chemistry , engineering , nanotechnology
A combined modification of the surface of high-chromium stainless steel 12Cr18Ni10Ti was carried out, including electro-explosive alloying with titanium and boron and subsequent irradiation with an intense pulsed electron beam. The formation of a multiphase submicro-nanocrystalline surface layer with a thickness of up to 70 μm was revealed. It was shown that the concentration of boron in the surface layer varies nonmonotonically, reaching a maximum value (≈19 at.%) at a distance of (10-15) μm from the alloying surface. It was established that the hardness and wear resistance of the modified steel layer exceeds the hardness of the initial state by 7 times, wear resistance - more than 9 times.