Structural studies of surface-alloyed layers of the Cr-B4C system, formed on Ti-6Al-4V titanium alloy

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-B4C and Cr-B4C powder mixture systems. Structural analysis allowed to identify the dependence of the initial powder portion on the shape and size of the phas...

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Bibliographic Details
Published inIOP conference series. Materials Science and Engineering Vol. 709; no. 3; pp. 33057 - 33062
Main Authors Chuchkova, L V, Belov, A S, Lozkina, E A, Khomyakov, M N
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.01.2020
Subjects
Boron carbide
Chromium carbide
Electron beams
Grain boundaries
Structural analysis
Surface alloying
Titanium alloys
Titanium base alloys
Titanium carbide
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Summary: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-B4C and Cr-B4C 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.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/709/3/033057