24September2017

Materials and Electronics Engineering

Structure phase states formation of Ti-Y surface layer by electro explosion and electron-beam treatment

V.E. Gromov1*, K.V. Sosnin1, Yu.F. Ivanov2, 3, X.L. Wang4, M.S. Liu5, Y. Wu4, E.S. Ivanova1, S.A. Nevskii1

Abstract
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1Siberian State Industrial University, Novokuznetsk, Russia
2Institute of High Current Electronics, SD RAS, Tomsk, Russia
3National Research Tomsk State University, Tomsk, Russia
4Research Institute, Northeastern University, Shenyang, China
5Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education), Northeastern University, Shenyang, China

Materials and Electronics Engineering 20152:3

Publication Date (Web): October 8, 2015 (Article)

DOI:10.11605/mee-2-3

*Corresponding author. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

 

Abstract

 


Figure 6 Lamellar eutectic formed in the adjacent region between Ti-rich and Y-rich zones.

A titanium-yttrium composite surface layer is formed on pure titanium surface by electro explosion and electron-beam treatments. The composite consists of titanium-rich and yttrium-rich eutectic microstructures. Both eutectics are in non-equilibrium state with their chemical constitution deviation from that in equilibrium phase diagram. The surface layer increases the surface hardness by three times, decreases the friction coefficient by 3 times and reduces the ware rate by 4 times in comparison with that of the surface of pure titanium.


 

Keywords

Surface layer, Electric explosion, Electron beam, Wear property