Effect of structural steel ion plasma nitriding on material durability in pulsed high magnetic fields

5th International Congress on Energy Fluxes and Radiation Effects 2016

Spirin, A.V.^1 ; Krutikov, V.I.^1 ; Koleukh, D.S.^1 ; Mamaev, A.S.^1 ; Paranin, S.N.^1 ; Gavrilov, N.V.^1 ; Kaigorodov, A.S.^1

Institute of Electrophysics, Ural Branch, Russian Academy of Sciences, Yekaterinburg, Russia^1

关键词: Electrical and mechanical properties;    Flux concentrator;    High magnetic fields;    Ion-plasma nitriding;    Magnetic flux concentrators;    Material durability;    Microhardness profiles;    Pulsed high magnetic field;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/830/1/012080/pdf
DOI  :  10.1088/1742-6596/830/1/012080

来源: IOP

【 摘 要 】

The work was aimed to study the influence of plasma nitriding on electrical and mechanical properties of structural steels and their durability in pulsed high magnetic field. The plates and cylindrical magnetic flux concentrators were made of several steel grades (30KhGS, 40Kh, 50KhGA, 38Kh2MYuA, and U8A), heat-treated, and subjected to the low-temperature (400, 500°C) plasma nitriding. Electrical and mechanical properties of materials, phase composition of steel surface layer, microstructure and microhardness profiles were investigated on the plates before and after plasma treatment. Microstructure and microhardness profiles across the subsurface layer of plasma treated and untreated concentrators applied for high magnetic field generation were also studied. Magnetic field of 50 T under tens of microseconds in duration inside the flux concentrators was generated by long-life outer coil.