Plasma boronizing of Ti6AlV4 using solid precursors by double glow plasma alloying technique
(1.Research Institute of Surface Engineering, Taiyuan University of Technology, Taiyuan 030024, China
2.Pingshuo Coal Industrial Company, Shuozhou 038500, China
3.山西省太原市太原理工大学表面工程研究所)
2.Pingshuo Coal Industrial Company, Shuozhou 038500, China
3.山西省太原市太原理工大学表面工程研究所)
Abstract: Solid state B-offerings (FeB compound) were used for plasma-assisted boronizing on Ti6Al4V alloy by double glow discharge plasma alloying technique (DGPSA). During all experiment processing there was no harmful and toxic. The thickness and morphology, phase formation, elements concentrations and wear properties of boride layers were examined by means of optical microscopy, Vickers microhardness, X-ray diffraction, glow discharge optical emission spectroscopy and Ball-disk wear tests. The results show that friction coefficient of boride alloying samples versus corundum ball is lower than that of Ti6Al4V samples, as well as wear rate. This indicates that plasma-assisted boronizing of Ti6Al4V alloy has a high potential for industrial applications under tribological conditions.
Key words: plasma boronizing; titanium alloy; precursors; FeB compound