Journal Title
Title of Journal: Powder Metall Met Ceram
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Abbravation: Powder Metallurgy and Metal Ceramics
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Authors: A P Umanskii A E Terentiev M S Storozhenko I S Martsenyuk
Publish Date: 2014/10/12
Volume: 53, Issue: 5-6, Pages: 359-367
Abstract
The structurization and phase interaction during sintering of the Ni–Cr–B–Si–C–TiB2 composite are studied Xray diffraction scanning electron microscopy electron microprobe analysis and metallography are used to examine the effect of 10–40 wt titanium diboride additions on the structure and phase composition of the material and powders for thermal spray coatings It is established that titanium diboride additions lead to the formation of new complex CrMe23CB6 phases with microhardness 18–19 GPa and TiC phase The size and content of these phases can be controlled by changing the amount and size of additions and sintering conditions The optimum amount of TiB2 promoting high service properties is 20 wt The new phases formed in the composite constitute 30 vol and their size is between 1 and 20 μm It is possible to control the service properties of Ni–Cr–B–Si–C–TiB2 composites and thermal spray coatings by changing the structural and phase composition of the powder material
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