Open AccessStructural studies of surface-alloyed layers of the Cr-B4C system, formed on Ti-6Al-4V titanium alloy
Author(s) -
Л. В. Чучкова,
A. S. Belov,
E. A. Lozkina,
M. N. Khomyakov
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/709/3/033057
Subject(s) - materials science , eutectic system , titanium , carbide , metallurgy , boride , cladding (metalworking) , titanium carbide , chromium , alloy , titanium alloy , coating , titanium powder , powder mixture , grain boundary , microstructure , composite material , sintering
The paper presents studies of the structure of surface-alloyed layers obtained by the method of non-vacuum electron-beam cladding of the Ti-Cr-B 4 C and Cr-B 4 C powder mixture systems. Structural analysis allowed to identify the dependence of the initial powder portion on the shape and size of the phases formed. It is noted that the presence of titanium (10 wt. %) in the composition of the surfacing mixture leads to the formation of large primary crystals of titanium carbide and boride. The absence of titanium contributes to the formation of chromium carbide coating and small eutectic particles on the grain boundaries on the surface.