Steel Surface Modification with Carbon Nanomaterial Using Concentrated Energy Flows


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Abstract

Surface strengthening of structural steels with carbon nanomaterials using laser and electron-beam heating is studied. It is shown that during laser treatment the maximum microhardness of a modified layer is achieved in a strengthened zone up to 70 μm thick with q = 9 × 104 W/cm2, and with electron beam treatment in a strengthened zone up to 300 μm thick with q = 4.6 × 104 W/cm2. It is established that in both cases with optimum treatment regimes strengthening is due to forming martensite, a cellular structure, and grain disintegration.

About the authors

O. V. Chudina

Moscow Automobile-Road State Technical University (MADI)

Author for correspondence.
Email: Chudina_madi@mail.ru
Russian Federation, Moscow

A. V. Eletskii

National Research University MÉI

Email: Chudina_madi@mail.ru
Russian Federation, Moscow

E. V. Terent’ev

National Research University MÉI

Email: Chudina_madi@mail.ru
Russian Federation, Moscow

G. S. Bocharov

National Research University MÉI

Email: Chudina_madi@mail.ru
Russian Federation, Moscow

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